In summary, VigRX Plus clearly shown significant improvement in erection quality, sexual interest and sexual satisfaction both in the individual as well as their partner, in line with the International Index of Erection Function (IIEF), when in comparison towards the control group receiving placebo on the 12 week period.

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Horny Goat Weed :

If you are taking blood-thinning medication or going through surgery this ingredient may increase your risk of bleeding. Therefore, you should consult with your doctor if the dosage in Vigrx Plus would affect you, especially if you have heart disease.

Asian Ginseng :

This ingredient can actually be categorized as safe. But, if you have diabetes this could lower your blood sugar levels. Also, in very rare cases, it has been reported to have side effects when taken with antidepressants.

Other than these two, all Vigrx Plus ingredients do not have side effects if taken in appropriate dose.

Damiana (Turnera aphrodisiaca)

“Damiana has long been claimed to have a stimulating effect on libido, and its use as an aphrodisiac has continued into modern times. More recently, some corroborating scientific evidence in support of its long history of use has also emerged. Several studies utilizing animal testing have shown evidence of increased sexual activity in sexually exhausted or impotent male rats when exposed to damiana,[4][5] as well as generally increased sexual activity in rats of both sexes.[6] It has also been shown that damiana may function as an aromatase inhibitor, which has been suggested as a possible method of action for its reputed effects.[7]”

Quoted from : http://en.wikipedia.org/wiki/Turnera_diffusa

Horny Goat Weed (Epimedium Sagittatum)

“I probed further. Does the plant truly help with erectile function as some claim? Both Dr. Kuang and Dr. Xiao Tong Shen explained that in clinical practice, they have used epimedium to successfully treat erectile problems, to boost waning libido, and to rebuild youthful sexual vitality. “It gives you back your sexual strength,” noted Dr. Kuang with emphasis. Hearing unequivocal confirmation of horny goat weed’s sex-enhancing effects from the top docs in China gave me confidence that the plant is the real deal.”

Quoted from : http://health.howstuffworks.com/sexual-health/sexual-dysfunction/horny-goat-weed-more-than-just-a-name.htm

Gingko Biloba

“While best known for supposedly aiding mental processes, the modern leaf extract of this ancient species of tree has also been studied for its effects on male erections. Both effects could be caused by ginkgo’s encouragement of increased peripheral blood flow, says Blumenthal.

After a geriatric patient taking the extract for memory protection reported improved erections, researchers at the University of California at San Francisco put it to the test. They gave about 200 milligrams per day to 63 men and women with a variety of sexual problems caused by antidepressant drugs. The study found the gingko 84 percent effective overall in helping with these problems. Men reported more erections; women reported more desire and better orgasms. But there was no control group to compare placebo effects.”

Quoted from : http://archives.cnn.com/2000/HEALTH/alternative/06/15/love.potions.wmd/index.html

Asian Red Ginseng

“Asian ginseng is widely believed to boost sexual performance, but there aren’t many studies to back this up. In animal studies, Asian ginseng has increased sperm production, sexual activity, and sexual performance. A study of 46 men has also shown an increase in sperm count as well as motility. Another study in 60 men found that Asian ginseng increased sex drive and decreased erection problems.”

Quoted from : http://www.umm.edu/altmed/articles/asian-ginseng-000249.htm

Saw Palmetto Berry

“Saw palmetto (Serenoa repens, 160 mg two times per day) and Pygeum africanum (100 mg two times a day between meals) may help if your sexual problems are caused by prostate disease. Saw palmetto can interact with certain medications, so do not take it without your doctor’ s supervision.”

Quoted from : http://www.umm.edu/altmed/articles/sexual-dysfunction-000150.htm

Muira Puama Bark

“A French scientist has conducted several studies of muira puama extract in humans. In one, 262 men who had no sexual desire and erectile dysfunction were given the herb. Sixty-two percent of the men with low libido said the herbal extract “had a dynamic effect,” and 51 percent who had erectile problems said the herb was beneficial. (Waynberg 1990) In a second study, 64 of 94 men said that their frequency of intercourse increased significantly after taking muira puama, while 32 of 46 who had reported a weakened desire at the beginning of the study said it had improved. Fifty-two of the 94 men reported that muira puama improved their erectile dysfunction. (Waynberg 1995)”

Quoted from : http://www.prostate.net/prostate-health-supplements-a-z/muira-puama/

Catuaba Bark

“Catuaba bark acts as a natural aphrodisiac. The bark enhances a male’s reproductive system. Although the herb is primarily used to improve erection in men, catuaba contains libido-enhancing elements for both men and women. Specifically, it helps the genitals function more effectively.”

Quoted from : http://www.ehow.com/about_5091188_benefits-catuaba-bark.html

Hawthorn Berry

“Hawthorn is a plant. The leaves, berries, and flowers of hawthorn are used to make medicine.

Hawthorn is used for diseases of the heart and blood vessels such as congestive heart failure (CHF), chest pain, and irregular heartbeat. It is also used to treat both low blood pressure and high blood pressure, “hardening of the arteries” (atherosclerosis), and high cholesterol. So far, research suggests that hawthorn might be effective in treating congestive heart failure, but there hasn’t been enough research on other heart-related uses to know if it is effective for them.

Some people use hawthorn for digestive system complaints such as indigestion, diarrhea, and stomach pain. It is also used to reduce anxiety, as a sedative, to increase urine output, and for menstrual problems.”

Quoted from : http://www.webmd.com/vitamins-supplements/ingredientmono-527-HAWTHORN.aspx?activeIngredientId=527&activeIngredientName=HAWTHORN

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