Grade: A

Naturally Huge – This natural supplement is one of the more impressive products we have evaluated. It scores high with its very impressive formula. Men have submitted surveys and documents citing dramatic increases in erection size and fullness as a result of using the Naturally Huge formula. The stories of praise for this formula can be attributed to its key complex Vasodex.  This is a proprietary blend dominated by the natural hemodialators L-Arginine and L-Citrulline.

It is now understood that Citrulline converts to Arginine thereby producing more Nitric Oxide in your body and thereby expanding your circulation capacity. Sidney J. Morris, Jr., of the Department of Molecular Genetic and Biochemistry at the University Of Pittsburgh School of Medicine explains it “The conversion of citrulline to arginine occurs via the sequential action of argininosuccinate synthase and argininosuccinate lyase.” More nitric oxide means greater expansion which citrulline contributes to.
By naming their proprietary blend Vasodex, Bio Vita Labs, the Palo Alto, California based company behind Naturally Huge is clearly trying to imitate or trying to glean some of the success of the leading supplement in the category Vasotrexx. Vasodex sounds very similar to Vasotrexx. They do a pretty good job of shadowing the famous Vasotrexx formula, but ultimately come up short on both potency and effectiveness. Incorporating L-Citrulline indicates a level of pharmacological sophistication few in the industry possess and its benefits are obvious. The formula is just under 1900mg per dosage and consists of 19 compounds. It is highlighted by Yanhusuo Extract, Long Jack, and Tribulus Terrestris Extract.

Study results also show Naturally Huge claims a reported erection size increase with men on their program reporting an average increase in erection size of 28% and some men having reported growth increases of up to 38%. This is very impressive. One of the few negatives related to the product is its name. Men have indicated they do not like to go to a store to buy Naturally Huge and even feel uncomfortable having it in their medicine chest at home. The old adage you shouldn’t judge a book by its cover is true here. It’s a silly name, but an extremely complicated, well designed, multi faceted supplement that is the second best we have evaluated.
GRADE B+

Grade: A

Ingredients: ArginMax contains l-arginine, ginseng, ginkgo, vitamin A, vitamin C, vitamin E, vitamin B, selenium, zinc and niacin.

Does it Work?: Yes. The effectiveness of l-arginine on male sexual health is paramount—according to a study reported in the British Journal of Urology, 31% of men who took l-arginine supplements doubled their nitric oxide levels, significantly reducing erectile dysfunction. According to a similar study conducted on lab rats, consumption of water laced with l-arginine increased penile hardness by up to 148%, with an increase in nitric oxide levels by 100%.

According to LovetoKnow expert Mike Johnson, vitamins A, C, and E also increase sex hormone production, improving a man's sex drive and penile strength by strengthening the veins leading to the penis. It also helps increase sperm count, essential for improving fertility.

Is it Safe?: Yes—but be careful if you have a pre-existing heart condition, liver or kidney disease. L-arginine can cause low blood pressure or affect the blood's electrolytes, causing heart or blood pressure problems. Overuse of l-arginine—which won't happen if you use ArginMax as directed—may also cause cramping, nausea or stomach discomfort.

Grade: A. ArginMax contains safe, effective ingredients that help reduce the symptoms of erectile dysfunction, increasing penile hardness and rigidity. It's also safer than other prescription medications, such as Viagra or Cialis. This is an excellent product for reducing erectile dysfunction safely and naturally.

Grade: A

AVELA - Avela is a natural male enhancement supplement that claims to improve sexual performance with its synergistic, proprietary blend of herbs and extracts, including eurycoma longifolia, ginkgo biloba and maca root extract.  Some of its reported effects include longer, easier-to-maintain erections, improved sexual desire, and stronger, more intense orgasms.  Although Avela specifically states it should not be used to treat any sexual problems, such as erectile dysfunction (ED), it does claim to boost the body's "sexual fitness" right before intercourse, acting similarly to most ED treatments.  They recommend taking up to 2 capsules an hour before intercourse to allow it to work efficiently.

Ingredients: Avela contains l-arginine, eurycoma longifolia, cniddium monnier 50% extract, xanthoparmelia scabrosa extract, GABA, epimedium sagittatum, butea superba extract, avena sativa extract, mucuna pruriens extract, ginkgo biloba, maca root extract, tribulus terrestris extract, muira puama extract and bioperine.

Does it Work?: It might.  According to a study reported in the 2003 issue of Phytomedicine, male rats who were fed eurycoma longifolia displayed an increase in testosterone and sperm count, suggesting it may improve the body's reproductive processes.  Another study, which was conducted by the same researchers, also revealed it may strengthen the vessels that facilitate erection strength.  Cathy Wong, an alternative medicine expert for About.com, also identifies l-arginine and ginkgo biloba as natural remedies for erectile dysfunction.  She claims both ingredients facilitate blood flow to the penis, making it easier for men to get--and maintain--an erection.

None of these ingredients have been proven effective by national studies, however.  Most of its reported effects occurred in small, animal or human-controlled studies, and have only been replicated in a few follow up studies.  There isn't enough evidence that confirms it absolutely can improve problems associated with erectile dysfunction--it only suggests they may be viable treatments.

Is it Safe?: No.  Ginkgo biloba can cause gastrointestinal (GI) irritation, nausea, vomiting, diarrhea, dizziness, heart palpitations and an increased risk for bleeding.  People taking antidepressants or anticoagulants should speak with their physician prior to using Avela.  Xanthoparmelia scabrosa is also a known toxic herb--regular use is not recommended.

Grade: C.  Not enough studies prove Avela's ingredients have the efficacy to improve the ability to maintain erections.  Although some studies suggest it may improve erection strength, they haven't demonstrated these abilities in numerous studies.  The risk of unwanted side effects is also a huge disadvantage, especially if you have a history of bleeding or gastrointestinal disorders.

Grade: A

Ingredients: Elexia contains yohimbe bark, tribulus terrestris fruit, St. John's wort, horny goat weed, l-arginine, Siberian ginseng, oat straw extract, sodium bicarbonate and niacin.

Does it Work?: It's not likely. Sure, it contains all the markers of a quality supplement—yohimbe bark and l-arginine are its key ingredients—but the issue here is the quality of its ingredients. Yohimbe bark, for example, contains less yohimbine (its "active" ingredient) compared to an yohimbe extract, meaning its effects on erectile dysfunction (ED) are minimal, if at all effective.

Although it contains other sex-boosting ingredients, such as l-arginine and ginseng, it's either a low grade form or spread out thinly throughout its proprietary blend, minimizing its effects on ED. Elexia could be effective, but only if it contained higher grade ingredients.

Is it Safe?: Mostly. Yohimbe use is linked to an increased risk of hallucinations and panic attacks, and should not be used by men with a history of panic attacks, schizophrenia or depression. According to Elexia, it also increases your skin's sensitivity to UV rays.

Grade: C. Elexia isn't a bad product—it does contain effective ingredients such as yohimbe bark and l-arginine—but there's simply not enough in their formula. If you have a panic or mental disorder, you shouldn't take Elexia either because of an increased risk of hallucinogenic side effects. Overall, Elexia is pretty average compared to other male enhancement supplements, earning it a C.

Grade: A

Long Man - This product is expensive ($79.95 for a one month supply) but is excellent. Its synergistic blend of active compounds can provide a big boost in helping you add size to your penis. These natural botanicals stimulate the capillaries and glands in your penile chambers. It contains very high amounts of the catalysts needed to promote such growth. Its most unique ingredient is Lepidium, a hearty rooty plant that grows in the high Andean plateau of Peru. It is reported to increase circulation to the penis and also the bioavailability of sperm. A nice bonus. But here to as with other top products the star is L-Arginine which produces Nitric Oxide. Many recognize Nitric Oxide as the primary mediator for natural penis augmentation. So profound are the effects of Nitric Oxide on increasing blood flow and the diameter of blood vessels, prestigious Science Magazine named Nitric Oxide as its Molecule of the Year. That was good news for your penis and your love life. Long Man is an excellent product that can give you some big results. The marblebag on the label is a bit much, but the product is rock solid.
GRADE B

Grade: A

EXTRA - This company must be out of their minds to be making the claims they are making! This is like Longitude Part II. Their full-page ad has claims of adding 3" in length, permanent results, and the product "no longer requires a prescription," and features a chart showing how large your penis will grow over a six-month period. It is a total scam. The formula consists of 14 ingredients, including 4 extracts and 4 powders. Complete and total lies have earned this pill a spot in my Scam section. GRADE F

Grade: A

What is EnhanceRx?
EnhanceRx is a herbal supplement that claims to improve erection quality and size by increasing blood flow to the penis, increasing its size when erect.  Over time, the increased blood flow supposedly widens and lengthens the penile tissues.  According to their website, most men experience up to a 3 inch increase in penis length within 2 months of use, with a 26 percent increase in girth.

Ingredients: EnhanceRx contains l-arginine, tribulus terestris, bioperine, catuaba, muira puama, epimedium (horny goat weed), citrus reticulata peel, Chinese yam, panax ginseng, cistanche and schizandra.

Does it Work?: It might.  Some evidence suggest horny goat weed and panax ginseng help improve erectile function, reducing the symptoms of erectile dysfunction (ED), a common sexual dysfunction for men over 50.  According to a study reported in the Journal of Urology, male rats who were given horny goat weed experienced an increase in penile blood pressure--one of the main factors that causes an erection.  Similar studies conducted on panax ginseng also show it forces the corpus cavernosum--the mechanisms that enable a penile erection--to fill up, reducing the time it takes to have an erection.

These studies do not indicate it has any effect on the penis's length, however.  In fact, none of EnhanceRx's ingredients have been scientifically proven to increase the length of the penile tissues.  The safety of all of its ingredients are also questionable--many of them have not been scientifically tested by any health or medical organization.

Is it Safe?: Not completely.  Panax ginseng may cause nausea, diarrhea, headaches, changes in blood pressure and muscle pain.  It also cause insomnia, although some researchers say recent studies show this isn't the case.

Grade: C.  There's no doubt EnhanceRx contains ingredients that make it easier to maintain an erection--both horny goat weed and panax ginseng reportedly strengthen the penile tissue--but there isn't any evidence showing it increases penis size.  EnhanceRx may not contain enough ingredients for safely encouraging erectile growth.

Grade: A

What is ProSolution?

ProSolution is a penis enlargement supplement that claims to increase penis length within 7 to 14 days of regular use. Those aren't its only reported benefits, however: it also claims to increase testosterone production, which helps improve sexual stamina, erection hardness, and desire. Several of their customers report gaining up to 2 inches in 6 months, with lesser gains seen in only a couple of months of use. But if this sounds too good to be true, it probably is--and their ingredients aren't necessarily proven to work.

Ingredients: ProSolution contains Solidin(TM), taj, safflower, momordica, apigenin, amla, arjuna, cordyceps, zinc, reishi mushroom, shatavari, drilizen and bladderwrack.

Does it Work?: It's not clear. Many of its ingredients are traditional Chinese and Indian herbs, which haven't been tested by any major health or medical organizations yet. This includes taj, safflower, momordica, apigenin, amla, arjuna and cordyceps. ProSolution also claims Solidin and drilizen promote nitric oxide production--a key component of erections--but there haven't been any studies conducted on its ability to improve erectile function.

But are they all ineffective? Not necessarily. According to the Handbook of Nutrition of Food, zinc may promote reproductive organ growth--it's the main vitamin that optimizes reproductive health in the prostate gland. It may also improve fertility by improving the volume of semen.

Is it Safe?: Its safety is unknown. Many of these ingredients are unknown in the Western world, and haven't been tested for safety or possible interactions with other supplements or drugs.

Grade: C. Many of ProSolution's ingredients are foreign to the western market, and haven't been tested for safety or efficacy. Only zinc has been shown to promote reproductive health by enhancing reproductive organ growth and semen volume, and even these reported effects are questionable. If you're looking for proven effectiveness, ProSolution probably isn't the ideal supplement for you.

Grade: A

EXTENDACAL – Pretty decent product that has a solid group of ingredients, which over time can help enlarge your penis. The formula contains L-Arginine, ZMA, Avena Sativa, Saw Palmetto, Orchic, Ginko Biloba and Vitamin E. This seven compound formula provides most of its benefits in the form of L-Arginine which has been scientifically proven to increase blood flow helping to expand the capillary matrix of the penis. Avena Sativa and Saw Palmetto are herbs that help target the penis for growth, while Ginko Biloba also aids in circulation and Vitamin E helps increase sperm production. The ratios and amounts of these ingredients are too low to rank Extendacal in the upper echelon. It definitely has the ability to help you increase the size of your penis, but probably not as dramatically as you would like. Still a very well made product. GRADE B

Grade: A

What is Irexis?

Irexis is a male enhancement supplement that claims to naturally treat premature ejaculation and erectile dysfunction, two common sexual dysfunction disorders. To enable this, Irexis utilizes several popular sexual enhancers, including yohimbe extract, ginseng and muira puama, a Brazilian tonic. They claim these ingredients go to work in less than an hour, prepping the body for intercourse. Some of their effects are comparable to Cialis, a popular prescription ED treatment.

Ingredients: Irexis contains catuaba bark, muira puama, tribulus terrestris, yohimbe extract, oyster extract, pumpkin seed, ginseng and zinc.

Does it Work?: It might--but the risk probably isn't worth it. According to the National Institutes of Health (NIH), yohimbe has been shown to treat impotence, or erectile dysfunction, in some clinical trials. It's currently being used as an alternative treatment for Viagra, a popular ED medication. According to another study reported in Biomedical Research, yohimbe increased the volume of ejaculated semen in male dogs for up to 5 hours after intake. But these reported benefits come at a risk--regular use may cause anxiety, panic attacks, hallucinations or dizziness. According to Prescription for Nutritional Healing, it can also cause seizures and kidney failure, although this is reportedly uncommon.

Studies conducted on the aphrodisiac power of catuaba bark, muira puama and pumpkin seed show they are not effective sexual aids, despite claims made by Irexis. Although Discovery Health says catuaba bark may improve "sexual enhancement", no studies confirm this theory. Some minor sexual enhancements have been observed in ginseng, but can also cause serious side effects such as changes in blood pressure and mania-like symptoms.

Is it Safe?: No. Yohimbe bark can cause serious adverse effects, including an increase in panic attacks, hallucinations or dizziness. It can also cause rapid heart beat, high blood pressure, insomnia, seizures, and in rare instances, kidney failure. Ginseng is known to cause rapid changes in blood pressure, muscle pain, headaches, diarrhea, nausea, and mania-like symptoms. People with a history of blood or heart problems should seek medical advice before taking Irexis.

Grade?: C. Yohimbe bark is arguably Irexis's most effective ingredient--but it's also its most dangerous one. With an increased risk for blood pressure and heart abnormalities, Irexis probably isn't ideal for people with pre-existing heart or blood conditions. Bottom line: Irexis may reduce symptoms of ED, but you may risk your health in the process.

Grade: A

Ingredients: Extenze contains folate, zinc, micronized DHEA, prognanolone, black pepper, piper longum, ginger, yohimbe extract, tribulus terrestris extract, Korean ginseng root, cnidium monnier, eleutherococcus extract, xanthroparmella scarbrosa, gamma-aminobutryic acid (GABA), velvet deer antler, horny goat weed, damiana, muira puama extract, pumpkin seed, stinging nettle root, astragalus root, licorice extract, L-arginine, Ho Shou Wu extract, hops extract and boron.

Does it work?: It might. According to the National Institutes of Health (NIH), there is enough clinical evidence showing yohimbe extract effectively treats problems caused by erectile dysfunction. There is also some anecdotal evidence it may increase the sex drive, although studies showed it wasn't very reliable.

The Journal of Urology also showed Korean ginseng, or red ginseng, helped treat erectile dysfunction by improving penile rigidity and strength, making it easier to maintain an erection.

But none of these ingredients cause temporary penis enlargement, which Extenze claims to do.

Is it Safe?: No. According to a 2005 report by the Los Angeles Times, Extenze was fined $300,000 for making false claims about its product, which included using unsafe levels of lead—and not disclosing it to its customers. Although Extenze has removed lead from its product since the report, there are still major side effects associated with it, including heart palpitations, confusion, fainting and migraines. Because it may affect blood pressure, people with diabetes, heart disease or high blood pressure should not take Extenze.

Grade: C. If some things sound too good to be true, it probably is—Extenze being no exception to this rule. Although its rich herb complex may improve symptoms of erectile dysfunction, it is not a cure for it.

Grade: A

Vivid Virility – A

Grade: A

Maxativa – Designed to release bound up testosterone over time, is this better than an average combination of herbs and vitamins? The special Maxative herbal blend the company touts is comprised of Smilax Root Powder, Korean Ginseng and Damiana. Not exactly the Superstars of the herbal world. But this formula can produce minor results for some men if taken over long periods of time. Also contains zinc, which is excellent for overall male health. Produced by Futurebiotics, a well-respected company with a history of using quality ingredients.
GRADE C+

Grade: A

What is Provigro?

Provigro is a dietary supplement that claims to promote "male vitality", and indicates it may be a useful treatment for erectile dysfunction (ED), a common sexual disorder. But they believe the true key to reproductive health isn't the use of pharmaceutical drugs--they believe using all-natural ingredients helps ensure efficacy and safety. They recommend using their supplement every day to naturally improve erectile rigidity and function.

Ingredients: Provigro contains barrenwort, maca, velvet bean, tongkat ali, panax ginseng and l-arginine.

Does it Work?: Yes--but some of its ingredients are also potentially dangerous. Barrenwort may help reduce ED because researchers believe it's chemically similar to sildenafil, the active ingredient in Viagra. According to the Journal of Urology, barrenwort also inhibited PDE-5, which sildenafil also inhibits. This suggests it may be a viable treatment for ED, although it's not as effective as sildenafil.

Velvet bean has also been shown to improve the libido. According to a couple of national studies, velvet bean increased dopamine production, one of the main factors that increases sexual function. It also may improve erectile function, although this hasn't been proven in any scientific studies.

Many of Provigro's ingredients are potentially dangerous, however. Panax ginseng and l-arginine are known to cause a variety of side effects, and cause worsen blood pressure and asthma.

Is it Safe?: No. L-arginine can cause lung inflammation and can worsen asthma due to its effects on the lungs. Panax ginseng can cause nausea, diarrhea, headaches, nosebleeds, sudden or rapid changes in blood pressure and insomnia. If used with antidepressants, it can also trigger mania-like symptoms in some men.

Grade: C. Although many of Provigro's ingredients are beneficial for men with ED, its not completely free of side effects. Both l-arginine and panax ginseng can cause serious complications, which can affect people on antidepressants or who suffer from asthma. Although efficacy is important in a male enhancement supplement, so is safety--and Provigro doesn't score well in this area.

Grade: A

VigRx – Another scam tricking men out of their hard-earned money with the false hope of adding inches to the end of their penises. The website is a total scam complete with stock photos of  doctors that can be bought for around $100 and who are not affiliated with the company in any way. They call themselves Albion Medical, trying to con you into thinking that a team of medical doctors is behind this classic snake oil operation. They are all over the internet and you have probably seen their website which has a very high traffic level. The website has a real scientific looking graph on it that seems  legitimate, but it’s all bull. A total scam! Remember, no pill will make your penis 3 inches or more longer - it is impossible - end of story. GRADE F

Grade: A

What is Tenaga XX?

Tenaga XX is a proprietary male enhancement formula based on ancient Mayalsian medicine, which they claim instantly revives male vitality. Tenaga XX credits most of its efficacy to tonkgkat ali, a patented extract that may promote testosterone production--a key component of libido, or a man's sex drive. Although they hesitate to say what it specifically treats, they emphasize it is a extremely effective supplement for treating all types of sexual problems.

Ingredients: Tenaga XX contains a proprietary blend of eurycoma longifolia root extract (tongkat ali), cosmos caudatus leaf extract, lemon and safflower extract.

Does it Work?: It might. According to a study conducted by National Product Communications (NPC), tongkat ali increased plasma testosterone in male rats, which indirectly improved their sexual performance. It also increased the rats' sperm count, which helped improve fertility levels. Its natural testosterone-boosting properties earned it the moniker "herbal Viagra" among some health companies, who currently sell it as a natural cure for erectile dysfunction (ED). Both cosmos caudatus and safflower have not been tested for its sexual efficacy, and are not considered effective sexual aids by any reputable health or medical organization.

Is it Safe?: No. Tongkat ali can cause insomnia, restlessness and anxiety. It can also weaken the immune system, and should not be used by men with weak immune systems, diabetes, or who are taking immunosuppressant drugs.

Grade: C. Tenaga XX has been shown to increase testosterone levels, and may be a suitable treatment for poor sexual function. But Tenaga XX is not completely safe--tongkat ali can cause numerous health issues, especially for people with a weakened immune system. People with diabetes, a weakened immune system or who suffer from anxiety disorders should seek medical advice before considering this supplement to avoid further complications.

Grade: A

What is Triverex?

Triverex is a male enhancement supplement used to enhance the size--and the performance--of the penis, which helps reduce the symptoms of sexual dysfunction. Dr. Mark Moyad, M.D., one of natural medicine's top experts, developed Triverex due to a demand for natural over-the-counter (OTC) male enhancement supplements. Triverex works by using a triple-action formula that targets the three most common parts of male sexuality, called mood, blood flow and stamina. Dr. Moyad believes this is the most effective way to treat sexual dysfunction naturally, although many physicians debate this isn't a factual assessment.

Ingredients: Triverex contains a proprietary blend of Korean red ginseng, l-citrulline, maca and epimedium.

Does it Work?: Triverex contains some benefits. For example, Korean red ginseng has been clinically shown to improve erectile function--according to a study conducted by Sao Paulo University, it facilitated more frequent erections in male participants. A 2002 study published in the New York Academy of Sciences also shows it contains significant aphrodisiac qualities, and may increase libido levels.

Epimedium is also believed to contain strong aphrodisiac benefits. Why? Scientists recently discovered epimedium contains a natural compound called icariin, which is chemically similar to sildenafil, the active compound found in Viagra. Clinical studies show it does reduce ED in the same way as Viagra, but not as effectively.

L-citrulline and maca, or maca root, have not been shown to affect reproductive function. They have been traditionally used as aphrodisiacs, but they have not been shown to improve sexual function by any studies.

Is it Safe?: Somewhat. Korean red ginseng can cause some blood pressure irregularities, nosebleeds, nausea, stomach upset and mild insomnia. The safety of epimedium, l-citrulline and maca are not known.

Grade: C. There is evidence Triverex can improve erectile function, but none of these ingredients have been shown to increase penis length or girth. Many researchers also believe supplements cannot increase penis length--this can only be achieved through surgery or jelquing techniques. Triverex isn't completely ineffective, but it probably won't work the way it's intended to.

Grade: A

What is Prolixus?

Prolixus is a natural penis enlargement supplement that claims to widen and thicken the penis instead of lengthening it--a common claim made by male enhancement companies. According to Prolixus, lengthening the penis is impossible, but beefing it up--akin to building arm or leg muscle--is possible due to its ingredients, which include niacin and epimedium. To promote thickness, they utilize a technique called the tissue stimulation transport system, which transports these key ingredients to the cells inside the penis, causing immediate enlargement.

Ingredients: Prolixus contains niacin, epimedium, ginkgo and ginseng.

Does it Work?: It could. According to one study, ginseng has been shown to stimulate the gonadal tissues with regular use--this essentially means it makes it easier to have an erection. Other evidence also suggests it also has strong aphrodisiac properties, and helps promote stamina during intercourse. Epimedium, better known as horny goat weed, has also been shown to be an effective aphrodisiac--it promoted reproductive properties in animal studies. Epimedium also contains a chemical called icariin, which is chemically similar to Viagra's active ingredient, sildenafil.

But these ingredients aren't completely safe—some of them increase the risk for gastrointestinal disorders and bleeding. Both gingko and ginseng increase bleeding, and can be potentially dangerous for people with bleeding disorders.

Is it Safe?: No. As mentioned above, both ginkgo and ginseng increase bleeding, and is not a safe supplement for men with bleeding disorders. People who take anticoagulants should also seek medical advice before taking Prolixus. There is also an increased risk for gastrointestinal upset, nausea and vomiting.

Grade: C. The evidence clearly shows Prolixus contains some strong aphrodisiac properties, but there's also an increased risk for bleeding, which can be potentially dangerous—or life-threatening—for men with bleeding disorders. There is also no evidence it can increase penis length, and may be ineffective for this use.

Grade: A

Ingredients: Enzyte contains ginkgo biloba, horny goat weed extract, Korean ginseng, tribulus terrestris extract and L-arginine.

Does it Work?: Maybe. Both ginkgo biloba and Korean ginseng increase blood flow to the penis, making it easier to get an erection. Korean ginseng also increase nitric oxide levels, having a positive effect on the pleasure centers in the brain. Hypothetically, this should improve sexual satisfaction and libido, making sex more pleasurable.

But these ingredients don't play a role in Enzyte's supposed ability to increase the penis's length and girth. Although increased libido may strengthen the hardness of an erection, which may increase length, this isn't a permanent fix. Once the erection disappears, so does its length.

Is it Safe?: No. Enzyte contains bee pollen, which can be harmful for people with pollen allergies. It may also cause hypotension, or low blood pressure. People with diabetes, heart disease or Parkinson's disease should not take Enzyte because it may worsen these conditions. People with a history of schizophrenia should also avoid taking Enzyte because it contains Korean ginseng, which reportedly causes increased agitation in schizophrenics.

Grade: C. Enzyte may not give you a fuller, longer erection, but some of its ingredients may improve libido, stamina and erection strength, improving sexual satisfaction. It's not the cure for erectile dysfunction, however, and is not completely free of harmful ingredients. “All-natural” is not necessarily an indicator of safety in this case.

Grade: A

What is Natural Gain Plus?

Natural Gain Plus is a natural penis enlargement supplement that claims to increase penis length by using a synergistic blend of natural herbs, extracts and amino acids, which reportedly support reproductive health. According to their website, they've been rated the number one penis enhancement program in the United States, with features on CNN.com, Fox News and MSNBC. They claim you only need to take their supplement once per day to add inches instantly--penis extenders, weights or surgery aren't needed to enhance its length.

Ingredients: Natural Gain Plus contains niacin, zinc oxide, and a proprietary blend of maca, cautaba bark, muira puama bark, l-arginine, barrenwort, tribulus, cola seed, oatstraw, stinging nettle, pumpkin seed, ginger root, American ginseng, Eleuthero root, Asian ginseng, sarsaparilla, orchic substance and boron citrate.

Does it Work?: It might. According to the Handbook of Nutrition and Food, zinc is one of the key components to reproductive organ growth--it's an essential vitamin necessary for improving semen volume and quality. Several clinical trials have also noted it promotes nitric oxide production, a key component of maintaining an erection. Although this doesn't suggest an increase in penis length, it can help make erections harder, which may temporarily increase penis length. Similar effects have been observed in l-arginine, an amino acid.

There is insufficient evidence that its other ingredients can increase penis length, however. Although ginseng can also improve erectile function, there isn't any evidence it helps grow reproductive tissue. But its obvious sexual effects shouldn't be discounted--it can improve erectile function, a common problem for men with erectile dysfunction (ED).

Is it Safe?: No. Both American and Asian ginseng can promote insomnia, rapid changes in blood pressure, gastrointestinal upset and breast pain. Ginger also causes adverse reactions when taken with certain medications, such as anticoagulants.

Grade: C. Only a few of Natural Gain Plus's ingredients help improve erectile dysfunction and length, which is quite low compared to other male enhancement supplements (such as Betterman). Natural Gain Plus may not be the ideal supplement for men who need all-around support for sexual dysfunction issues. Don't discount its erectile benefits, however--it can be very beneficial for men suffering from ED.

Grade: A

What is MaxViril?

MaxViril is a natural male enhancement supplement that claims to desensitize the glans, which helps delay ejaculation--a common problem for men who suffer from premature ejaculation dysfunction. It also supposedly increases blood flow to the penis, increasing its size within 18 minutes of use. To enable this, MaxViril uses a specialized flower formula, in extract form, to attack sexual dysfunction at its source. These ingredients are also free of stimulants and synthetic chemicals--properties that could cause unwanted reactions, like with Viagra or Cialis.

Ingredients: MaxViril contains rhodiola rosea, damiana, nutmeg, saffron, liquorice, ginseng, pine, nettle, and polygala comosa.

Does it Work?: It might. Ginseng was shown to contain aphrodisiac properties in several American studies--some evidence suggests it stimulates the penile tissues, which helps men get an erection. It also may stimulate the central nervous system, which helps improve sexual stamina.

MaxViril's other ingredients have not been proven effective for the treatment of any sexual dysfunction, however. Studies show saffron and nutmeg do not improve erectile strength or function, despite its use as a cure-all for sexual problems in Indian medicine. Many of its ingredients also contain psychoactive properties, which can affect the secretion of hormones in the brain, leading to psychiatric effects--such as a feeling of "drunkenness", hallucinations or sudden mood changes.

Is it Safe?: No. Damiana can cause adverse reactions in people with a history of breast cancer, a psychiatric disorder (such as bipolar disorder), dementia, Parkinson's disease, or who take diabetic medications that control blood glucose levels. Ginseng and nutmeg can also cause psychiatric problems, such as mania and hallucinations.

Grade: C. Although ginseng can help improve the frequency of erections, this probably isn't a desirable effect for men who suffer from premature ejaculation dysfunction. None of its ingredients treat any symptoms related to this condition, and may cause dangerous psychiatric reactions. People with a psychiatric disorder should speak with their doctor before taking this supplement.

Grade: A

Vazomyne– Another hype-job from the same people who make Maxoderm comes this product claiming to provide "Endurance Therapy" "through blood stream targeting." Maxoderm ads themselves make fun of herbal pills, saying "don't be fooled" only 5% of their ingredients are absorbed and they are a total waste! Now they are trying to secretly sell herbal pills while intentionally concealing the name of their company Barmensen Labs in their ads for Vazomyne. What does this tell you about them? The formula is a 650mg tablet, which raises a whole bunch of questions - why not a better absorbing capsule if they are so concerned about absorption? Why no bioperine? Why arginine HCL and not straight arginine which is 17% more potent? This product is nothing special and it only goes to show that the guys at Barmensen Labs talk out of both sides of their mouth. The website is filled with unsupported hype, double-talk, and lies - "time released" "apex approach," and the totally illegal statement " works like many doctor prescribed male enhancement products." I would take a pass on this. GRADE C

Grade: A

ProMaxum – Imagine stepping into the batter's box to face Roger Clemmons and you have a Wiffle Ball bat in your hand. You have no chance. That is what it would be like to go to bed with a women powered by these capsules. I believe this is put out by the same people behind Penetrin, Inteix, Prosta 8, and Promaxis RX. This company is putting its resources in its direct-marketing efforts and not too much appears to be going into producing a strong formula. There is nothing special about these ho-hum 752mg capsules, except the presence of Forslean, a patented compound from the Sabisna company. This ingredient, normally found in diet products, helps increase absorption similar to bioperine. GRADE C

Grade: A

Jenasol – Imagine stepping into the batter's box to face Roger Clemmons and you have a Wiffle Ball bat in your hand. You have no chance. That is what it would be like to go to bed with a women powered by these capsules. I believe this is put out by the same people behind Penetrin, Inteix, Prosta 8, and Promaxis RX. This company is putting its resources in its direct-marketing efforts and not too much appears to be going into producing a strong formula. There is nothing special about these ho-hum 752mg capsules, except the presence of Forslean, a patented compound from the Sabisna company. This ingredient, normally found in diet products, helps increase absorption similar to bioperine. GRADE C

Grade: A

EndowMax – Endowmax is a male enhancement pill that claims to enhance penis size, with the added benefits of increased sexual stamina and ejaculation volume. According to their website, most men see an increase of 1 to 3 inches within several weeks of use, or a 28 percent increase. It supposedly causes this by stimulating blood flow to the penis, gradually increasing its length, girth and strength.

Ingredients: Endowmax contains epimedium grandiflorum (horny goat weed), maca root, damiana, l-arginine, tribulus terrestris, gamma-aminobutyric acid (GABA), jujube dates extract, muira puama, catuaba bark, xanthoparmelia scabrosa, cnidium monnieri and eurycoma longifolia.

Does it Work?: Some evidence suggest it might. Several studies, including a recent study reported in the Journal of Urology, report horny goat weed helps increase penile blood pressure, improving erection strength and durability. According to a 2006 study, rats who received horny goat weed injections demonstrated an increase in blood pressure to the penile tissues, which improved the frequency of erections. Although this hasn't been shown to increase penis length, some health websites are recommending this as a natural alternative to sildenafil, better known as Viagra.

Maca root, jujube dates and catuaba bark have not been proven to increase penis length or strength, however. Although all three ingredients have been used in traditional medicine as sexual enhancers, numerous studies have proven they are ineffective. To make matters worse, maca root contains glucosinolates, which increases a person's risk for goiters.

Is it Safe?: No. Maca root can cause goiters, a condition that causes swelling in the thyroid gland or voice box. Damiana also contains psychoactive effects and can interfere with the absorption of diabetes medications, such as Orinase and Avandia. It can also make it harder to control blood glucose.

Grade: C. Only one of Endowmax's ingredients has been proven to improve the frequency of erections--and that's horny goat weed. With the increased risk for goiters and uncontrollable blood glucose levels, this probably isn't the ideal supplement for diabetics or people with thyroid issues.

Grade: A

What is Volume Pills?

Volume Pills is a male enhancement supplement that claims to improve sperm motility and quality, which play a role in male fertility. It also claims to make erections harder and longer-lasting, reversing erectile dysfunction (ED), a common sexual disorder. The key to this enhancement? According to their website, its ability to stimulate blood flow to the penis, which improves erectile function. Volume Pills has been endorsed by several physicians, including Dr. Michael Carter and Dr. Marcella Fernandez, who are regarded as the leaders in sexual psychology and therapy.

Ingredients: Volume Pills contains solidin, xia lan rou gui, hong hua fen, ku gua, 4', 5, 7-Trihydroxyflavone, embilica officinalis, san guo mu, dong chong xia cao, zinc oxide, ling zhi, xian mao, tian men dong, drilizen and fucus vesiculosus.

Does it Work?: It could. Zinc is a major nutrient found in semen, and many physicians believe it can improve the health of sperm. There's also increasing evidence zinc may improve sexual function, although it isn't clear how it works. Anecdotal evidence also suggests solidin and drilizen increase nitric oxide production, which leads to an erection.
Unfortunately, these are the only ingredients shown to treat ED. Many of its other ingredients are Chinese herbs that haven't even been tested in the United States for safety or efficacy. It's not clear why Volume Pills believes these ingredients promote sexual enhancement, when it's not even indicated as an effective treatment in traditional Chinese medicine.

Is it Safe?: No. Fucus vesiculosus has a laxative effect, and can be potentially hazardous for people with gastrointestinal disorders. It's not clear how safe its other ingredients are.

Grade: C. Volume Pills contains a concoction of Chinese herbs and extracts that may seem appealing at first glance--but a deeper look into their formula reveals their ingredients haven't been proven to enhance sexual function. Volume Pills falls short when it comes to safety and proven effectiveness against ED, earning it a C on our list.

Grade: A

What is Xytomax?

Xytomax is a nutritional supplement that claims to boost testosterone levels, which may play a key role in sexual performance. They believe it also helps enlarge the penis and prolong erections, acting as a treatment for erectile dysfunction (ED), a sexual disorder that makes it difficult to have--or maintain--an erection. But don't expect immediate results--according to their website, Xytomax.com, typical results (a 1 to 3 inch increase) appear within 3 months of use.

Ingredients: Xytomax contains vitamin B3, zinc, epimedium saggitatum, maca root, guarana extract, Korean ginseng root, l-arginine, muira puama, longjack extract, avena sativa, yohimbe bark extract, ginkgo biloba extract, saw palmetto, xanthoparmelia scabrosa, cnidum monnieri extract, GABA and damiana leaf.

Does it Work?: No--and here's why. Numerous health organizations, including the Food and Drug Administration (FDA) and the Mayo Clinic, warn consumers not to use supplements claiming to enlarge the penis because it's often based on faulty or misleading evidence. MayoClinic.com reports some penis enlargement pills can also contribute to erectile dysfunction (ED), which Xytomax actually claims to treat. None of the ingredients in Xytomax have been show to "grow" the penis, and such claims are not backed by any medical or health organizations.

But this doesn't mean Xytomax is completely ineffective. According to several studies, ginseng and l-arginine may play a key role in erectile function, which can be affected by ED. One study conducted by Sao Paulo University shows that ginoserides, the active chemical in ginseng, improved erectile function by stimulating the gonads, making it easier to maintain an erection. But l-arginine's benefits are more direct: clinical evidence suggests it may play a key role in the synthesis in nitric oxide, which is needed to "create" an erection. But both ingredients have a slew of unwanted side effects, many of which can affect blood pressure levels.

Is it Safe?: No. Ginseng is known to cause insomnia, increased bleeding, dramatic changes in blood pressure readings, diarrhea, headaches, nausea and breast pain. L-arginine can also affect blood pressure levels. Xytomax also contains a toxic herb called xanthoparmelia scabrosa, and is not recommended for daily use.

Grade: C. It seems a bit far fetched that one supplement alone can increase penis length--no health or medical organization currently supports this claim. But Xytomax contains two ingredients that may be essential for treating ED, called l-arginine and Korean ginseng root. Don't forget the staggering amount of side effects associated with this supplement, however. Many of them can be potentially life-threatening.

Grade: A

Ingredients: Alzare contains zinc, yohimbe, maca root, l-arginine, bioperine, DHEA, saw palmetto, ginseng, and a proprietary blend of oat straw, catuaba, muira pauma, nettle leaf, tribulus, sarsaparilla, astragalus, pumpkin seed, licorice, boron, and damiana.

Does it Work?: No. Although yohimbine hydrochloride is approved for the treatment of erectile dysfunction—it's currently sold as-is as a prescription medication—Alzare contains yohimbe, not yohimbine. Although yohimbe and yohimbine are similar, they are not the same ingredients—yohimbe is less effective than yohimbine for the treatment of erectile dysfunction.

None of its other ingredients are proven to increase penis size or erection strength, including zinc and saw palmetto. They can decrease your risk for prostate inflammation, however, which may reduce some symptoms that also occur with erectile dysfunction. It won't make you longer or more virile, though.

Is it Safe?: No. Yohimbe can cause heart problems, including an increased heart rate or high blood pressure. It may also cause panic attacks, headaches, dizziness or hallucinations. It is also associated with an increased risk for seizures and kidney (renal) failure.

Grade: F. Alzare may be all-natural, but that doesn't mean it's safe—there are numerous side effects associated with yohimbe, one of its main ingredients. If you're looking for a male enhancement supplement to make you better in the bedroom, you're not likely to find it in Alzare. Better supplements include Zyrexin and Betterman.

Grade: A

What is MagnaRX?
This male enhancement system—in reality, it's a naturally-derived supplement, not a system—made itself known online by dominating the natural male enhancement market, featured on nearly every sexual supplementation store on the Internet. It claims to increase penis length by up to 5 inches within three weeks, enhancing sexual desire and stimulation—a key factor for improving sexual satisfaction. It also claims to improve the intensity of male orgasms with a proprietary blend they'll only call their "Orgasmic Thrust Activation Process".

Ingredients: MagnaRX contains pygeum africanum bark, maca, horny goat weed, oat straw, oyster, catauba, oriental ginseng, L-arginine, stinging nettle, cayenne, muira puama, orchic substance, smilax officinalis, astragalus, licorice, pumpkin seed, terra alba, dicalcium phospahte, talc and cellulose.

Does it Work?: No. None of its ingredients are shown to increase penis length or width, although it may reduce the symptoms of erectile dysfunction (ED). Anecdotal evidence from MagnaRX customers also shows it does not have a significant effect on penis length. It may improve blood flow to the penis, however, which helps improve penis rigidity and strength.

Is it Safe?: No, especially if you have a heart problem. MagnaRX is known to effect the heart's rhythm, putting you at risk for a heart arrhythmia. It may also affect your blood pressure, heart beat, or cause significant chest pain. Other side effects include digestive problems—pygeum africanum can cause nausea, constipation, bloating or diarrhea—severe mood swings, blurry vision, dizziness, migraines and excessive gas.

Because of an increased risk for additional side effects, people with heart disease, high blood pressure, type 2 diabetes or a mood disorder should not take it.

Grade: F. There is no evidence that MagnaRX increases penis length—most of the ingredients promote ED regression instead, a key problem for men over 40. It's definitely not the male enhancement cure it claims to be—and it's definitely not safe for everyday use.

Grade: A

BIG STICK – The B&S in Big Stick should stand for Big Scam! This product is terrible and is a classic example of the phony garbage out on the marketplace pretending to be legitimate. First, the company name is Pfiser Pharmaceuticals. They want you to think that Big Stick is put out by the Pfizer Company, the makers of Viagra. There is no connection between the two companies. The label claims a “new medical breakthrough.” It’s a lie! These products are natural supplements; they are not medicine and contain no chemicals. Medicine is designed to treat, prevent or cure a disease and must be prescribed by a doctor. No legitimate supplement company would ever claim their products treat a disease. The ingredients are a joke too – Kava Kava, Ephedrine, Ginseng, and 50mg of L-Arginine. Of the four only L-Arginine will help, but in such a small amount it’s virtually useless.  Ephedrine is a central nervous system stimulant found in diet pills, ginseng gives you a boost of energy and causes liver damage. It was recently outlawed in both France and Canada and is about to be pulled off the market in the U.S. Canada incidentally, just banned ephedrine also. This pill will do nothing to help increase the size of your erections. Big Rip-off! GRADE F

Grade: A

DONGINATOR – I'll be back...bigger! Are these people serious? One would have to search long and hard to find a pill dumber than this, although Big Stick comes pretty close. The before and after photos this company uses to promote it's product are totally fake. If you have ever received a piece of mail from them look closely at the base of the penises of both “after” photos shown. You will see that there is a slight color variation indicating that a different penis was spliced in. What more needs to be said about this pill after a stunt like that. Men who have used it report no growth at all. One look at the ingredients would let anyone knowledgeable in natural compounds know it won’t help your penis. It contains no growth factors or vasodilation promoting complexes. They ought to call this Dumbinator! GRADE F

Grade: A

EXTENDOR This pill put out by the Beckman Group of Gary, Indiana guarantees gains of up to 3 inches in 30 days.  They even have a testimonial from a man who claims Extendor made his penis harder and longer than it’s ever been. The gentleman, Eric Mann, has appeared in numerous ads endorsing just about every pill this company produces. No pill, absolutely no pill adds 3 inches to your penis in only 30 days, despite what these guys claim. It’s an advertising gimmick, as is their $29.95 price. There is no Doctor Beckman as many have wondered. The formula is very simple. It consists of Yohimbe, Maca, L-Arginine and Zinc. The L-Arginine at 250mg is decent as are the levels of Maca and Yohimbe. The Zinc is a nice touch. It is well documented that the male sex organs use more zinc than any other part of the body.  Dr. U. Mehta reported in the Indian Journal of Experimental Biology that clinical tests showed that testicles and penises of animals shrank when they were fed diets devoid of zinc. The 50mg of zinc is a plus, but Extendor will most likely only produce very minor results only after a long period of continuous use. Surveys received on Extendor have been largely negative. 

If you spend 30 dollars for a bottle of this expecting to be 3 inches longer in only 30 days, you will be very disappointed. No legitimate supplement company would make such a claim. Beware of any company that promises to ad 3, 4 or 5 inches to your penis in 30 days. It is a lie! It is absolutely impossible biologically. GRADE C

Grade: A

Pro Plus - PRO PLUS – With claims like “will enlarge your penis up to 4 inches” and “you can make that miracle happen” or “gives you the maximum potential you want in only two months,” this company’s advertising department is stretching things just a bit too far. Put aside all the advertising hype and hyperbole, and what you have is a mediocre product that seems to only produce mild results.  It does not contain any growth factors, but it does have a simple mix of six botanicals – Horny Goat Weed, Yohimbe (bark), Ginko Biloba, Ginseng, Saw Palmetto and Muira Puama all at 100mg levels. These ingredients have been proven clinically to increase blood flow.  There is also a body of antidotal evidence that shows the ingredients result in more pleasure during intercourse. But the levels are very low, the yohimbe is in the less potent bark form rather than in the more expensive and much more potent extract form, and it contains no vasodilators.  Priced at $60 for a one month supply, Pro Plus is the middle of the pack at best. This Hollywood, California company should strengthen their product before making such outlandish claims. GRADE C

Grade: A

Size Max - SIZE MAX – These capsules are identical to the Longitude capsules first sold by CP Direct before the company was closed down by the Arizona Attorney General. Longitude gave the entire supplement industry a black eye due to their unscrupulous business practices and over stating the effectiveness of their product. Now selling the Longitude formula under the brand name Size Max is the Pharma Lux Company of Las Vegas, whose advertisements state their formula has been proven effective by Jane magazine.

A young women’s magazine like Jane Magazine isn’t exactly an authority on nutraceuticals, but it does offer some level of support as to one person’s experience with the product. Our investigators checked out the reference in the July 2002 issue of Jane magazine to verify its validity. There is a strong endorsement from a Jane Mgazine staff member, but the endorsement is not for Size Max, it is an endorsement for Longitude. In fact at the time that particular issue of Jane Magazine went to press Pharma Lux, according to State incorporation records, was not even in business! The company freely admits they have obtained the rights to the Longitude formula and are marketing it under the name Size Max.

The formula is only a little better than average, based on comparisons to other formulas and survey responses. There is no way this product is going to produce erections significantly larger or fuller based on the level of ingredients it provides. It can definitely give you more energy and stamina and improve your overall ability to function sexually. Its best feature is the 500mg of Yohimbe. It is significant to point out the Yohimbe is in extract form and is at a 15:1 ratio. Compare that to Pro Plus which has only 100mg of Yohimbe in bark format. Size Max is over 20 times more potent. Also the 50mg of Zinc is very beneficial as it has been clinically proven that a Zinc deficiency leads to shrinkage of the penis. Feedback we have received in the form of surveys indicates that Size Max produces modest results in increasing erection size and does provide harder erections. This validates the experience most men reported with Longitude which was no noticeable increase in the size of their erections, but a modest improvement in their sexual performance and pleasure. GRADE C+

Grade: A

Maxoderm - This product ought to be called MaxoScam, because that is what it is. The lab test results were shocking to say the least. The claims are absurd. As you will see if you read my Scam Section Maxoderm was discovered in laboratory tests to secretly contain the same main active ingredient found in the pain reliever cream Ben Gay! Three separate labs also tested to measure aspects of their Vasotran Auctum formula which they claim is “patent pending,” and all three labs showed than none of the ingredients claimed on their label were found in the product! Take a minute and read the Scam section for the real story behind this scam. GRADE F

Grade: A

Wydenz - This product ought to be called MaxoScam, because that is what it is. The lab test results were shocking to say the least. The claims are absurd. As you will see if you read my Scam Section Maxoderm was discovered in laboratory tests to secretly contain the same main active ingredient found in the pain reliever cream Ben Gay! Three separate labs also tested to measure aspects of their Vasotran Auctum formula which they claim is “patent pending,” and all three labs showed than none of the ingredients claimed on their label were found in the product! Take a minute and read the Scam section for the real story behind this scam. GRADE F

Grade: A

Xanogen - Xanogen is a natural male enhancement formula that targets erection size and firmness--two parts of an erection that can worsen due to old age. There's no need to use penis extenders or additional pills to enhance its length--Xanogen claims its ingredients do all the dirty work, naturally adding length to your erection. According to their website, Xanogen.com, most men experienced up to a 28 percent gain in erection size within 3 months of use, with improved rigidity and durability.

Ingredients: Xanogen contains epimedium, maca, damiana, l-arginine, tribulus terrestris, gamma-aminobutyric acid (GABA), jujube dates extract, muira puama, catuaba bark, xanthoparmelia scabrosa, cnidium monnier and tongkat ali. All of its ingredients are vegetarian-friendly.

Does it Work?: Not quite. The issue here is that there are no supplements, ingredients or herbs currently recognized as potential treatments for enlarging the penis. According to MayoClinic.com, no scientific research supports using non-surgical methods to increase penis size, and should not be used for this purpose.

None of Xanogen's ingredients have been clinically shown to increase erection size either. They claim increasing blood flow to the penis can increase its size, but that's simply not true--studies show this only improves erectile rigidity, not the size of the penis.

But some of Xanogen's ingredients may reduce the symptoms of ED. L-arginine, an amino acid, was shown to play a role in the synthesis of nitric oxide, which helps facilitate an erection. It may also help release hormones, which can also play a role in sexual function. Tongkat ali was shown to increase mounting behavior in one study, and some researchers believe it may improve the libido.

Is it Safe?: No. L-arginine can affect blood pressure levels, and should not be taken by anyone with blood or heart problems. Xanthoparmelia scabrosa is also highly toxic, and can cause serious, and potentially life-threatening, side effects.

Grade: C. Xanogen may claim to increase erection length, but numerous health organizations argue this is physically impossible--no herb, ingredient or supplement has been shown to increase penis length in any study. Xanogen may also be toxic, due to the inclusion of xanthoparmelia scabrosa, a highly toxic herb. Some evidence suggests it can reduce the symptoms of ED, however.

Grade: A

Promaxis RX - Another bottle of snake oil sold through the mail by some slippery marketers who call themselves Hampshire Laboratories. Their marketing gimmick is to claim Promaxis Rx has something they call "PEXT" Lengthening Technology." It is a total scam and completely bogus. They claim their product will make your penis grow like Pinocchio's nose. What is incredible is that it is the EXACT SAME PILL as Magna Rx. Check out the Scam section where you can see the labels of these two side by side. You will see they are the same. This is a scam. GRADE F

Grade: A

What is SinRex?

SinRex is a male enhancement pill that claims to stimulate up to 3 inches of penis growth by using its patented Dual Complex Formula, which improves its absorption. It also claims to improve overall sexual performance, making sex more enjoyable, longer lasting and more stimulating. Like other male enhancement supplements, SinRex is 100 percent all natural--none of its ingredients are chemically-based.

Ingredients
SinRex contains bioperine, copper chelate, creatine, cuscuta, ginkgo biloba, green tea, horny goat weed, hawthorn berries, inosine, l-arginine HCL, lycopene, omega 3 fatty acids, saw palmetto, Siberian ginseng, soy, tribulus terrestris and vitamin E.

Does it Work?: Some evidence suggests it could. Unfortunately, its only effective ingredients include horny goat weed, l-arginine HCL and Siberian ginseng, which have been indicated as possible treatment for erectile dysfunction (ED), a commonly diagnosed sexual disorder. Horny goat weed may reduce ED symptoms because it contains an active agent chemically similar to sildenafil, the active agent found in Viagra; both l-arginine HCL and Siberian ginseng improve erection rigidity by increasing nitric oxide, making it easier to maintain an erection.

But none of these ingredients have been scientifically shown to increase penis length. Many medical professionals argue it's physically impossible for a supplement or drug to increase penis length--only surgery or stretching techniques can add length. No health organizations have supported the theory that supplements can increase penis length.

Is it Safe?: No. Siberian ginseng can cause headaches, nausea, changes in blood pressure and insomnia, especially if combined with other stimulants. L-arginine is also known to worsen asthma because it causes lung inflammation.

Grade: C. SinRex may claim to enhance penis length, but none of its ingredients have been proven to facilitate this growth. Many health organizations also argue there's no such thing as a pill that can cause the penis to grow. If major health organizations say it's impossible to do this, it's probably true—SinRex may not be effective for promoting penis growth.