Horny goatwee refers to various herb species of the Epimedium genus, and may be known as "yin yang huo." It has limited evidence of health benefits.
Horny goatwee contains chemicals that might help increase blood flow and improve sexual function. It also contains phytoestrogens, chemicals that act somewhat like the hormone estrogen.
People use horny goatwee for erectile dysfunction (ED), sexual problems, weak and brittle bones, health problems after menopause, and other conditions, but there is no good scientific evidence to support any of these uses.Icariin, the active ingredient in Horny GoatWee is a flavonoid compound, or a type of antioxidantResearch suggests that icariin also has PDE5 inhibitory properties.Increases nitric oxide levelsPlant basedTake between meals