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Horny Goat Weed

500 mg
NPN: 80042652
Format: Vegetable Capsules


Standardized to 20% icariin and purported to increase libido by increasing levels of nitric oxide, which relax smooth muscle.

Horny goat weed has a 2000-year history of use as a sex enhancer. Scientific texts on Chinese herbs and top medical doctors in Shanghai report that horny goat weed boosts libido, improves erectile function, and helps to mitigate menopausal discomfort. The leaves contain a variety of flavonoids, polysaccharides, lignans, sesquiterpenes, phenolic and penethylol glycosides, ionones, and sterols, as well as an alkaloid called magnaflorine. Horny goat weed is a botanical that has also been used traditionally in Japan. This herb is also used for disorders of the kidneys, joints, liver, back, and knees. Horny goat weed’s most common use is as an aphrodisiac. Through research, horny goat weed has been found to have testosterone-like effects. It stimulates sexual activity for both men and women, increases male sperm production, stimulates the sensory nerve endings, and increases overall sexual desire.

Horny goat weed’s aphrodisiac effects have been verified in both animal and human research. Mice treated with a horny goat weed preparation produced “apparent effects on the improvement of sexuality.” It was also shown to improve their sperm-producing capability. Since horny goat weed has been traditionally used for kidney disease, it is intriguing how it demonstrated an increase in the sexual drive and quality of life for patients with chronic renal failure.


Research has shown that horny goat weed significantly increases testosterone levels in mice. This appears to be the herb’s main mechanism of action, although horny goat weed could have more than one. For example, through research, it has been established that sexual arousal is linked to the activity of cholinergic neurotransmitters. However, an enzyme called acetylcholinesterase (ACHE) inactivates cholinergic neurotransmitters within ¹⁄₅₀₀ of a second. Research shows that horny goat weed is capable of inhibiting ACHE. This in turn could support higher levels of the key cholinergic neurotransmitters associated with sexual arousal. Research has also shown that horny goat weed has antifatigue effects and aids in preventing adrenal exhaustion.

Directions of Use

Adults 19+: Take 1 capsule daily or as directed by your health-care practitioner. Take for a minimum of 4 weeks to see improvements. Consult a health-care practitioner for use beyond 6 months.


Each vegetable capsule contains:
Horny goat weed (Epimedium grandiflorum) extract, 20% icariin500 mg
Other ingredients: Vegetable magnesium stearate in a non‑GMO vegetable capsule composed of vegetable carbohydrate gum and purified water.
Available Sizes
Vegetable Capsules
60 capsules
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