Product specification:50% Icariins(HPLC) Latin name:Epimedium grandiflorum.L Product type:Yellow brown fine powdered Extract Part of the plant used:stems& leaves Extract method:Grain alcohol Horny Goat Weed Extract is a traditional botanical medicine used in China and Japan. Although this herb has a history of traditional use for disorders of the kidneys, joints, liver, back and knees, its principle use is as an aphrodisiac. According to one herbal author, Horny Goat Weed Extract has testosterone-like effects, it stimulates sexual activity in both men and women. Increases sperm production. Stimulates the sensory nerves, and increases sexual desire.