act-supplier.com, a type of flavonoid. It is the 8-prenyl derivative of kaempferol 3,7-O-diglucoside. The compound has been isolated from several species of plants belonging to the genus Epimedium which are commonly known as Horny Goat Weed or Yin Yang Huo.[1] Extracts from these plants are reputed to produce aphrodisiac effects, and are used in traditional Chinese medicine to enhance erectile function.[2]It is thought that icariin is an active component of Epimedium extracts, as it has been sho