Supports sexual vitality Suitable for men seeking everyday wellness Free of gluten, dairy, soy, and nuts While its name may elicit a few sly snickers, Horny Goat Weed is good for more than just a blush and a laugh. Sourced from the Epimedium plant, horny goat weed has been used in traditional Chinese medicine for centuries to support male sexual vitality. It contains an active compound called icariin, which promotes blood flow. In addition to 500mg of horny goat weed, The Vitamin Shoppe® brand Horny Goat Weed Complex features a blend of other libido-supporting herbs such as Tribulus and Mucuna pruriens extracts. Frequently Asked Questions Where does horny goat weed get its on-the-nose name from? The story goes that a Chinese goat herder noticed a rise in their herd's sexual activity after eating leaves from the Epimedium plant.