Epimedium Grandiflorum Extract - extract plants of the Berberidaceae family - large flowered barrenwort, occurring in the Far East and used as an aphrodisiac. Icarin, flavonoid, an active substance which inhibits an phosphodiesterase type 5 (PDE-5) enzyme and prevents the flow of blood to the corpora cavernosa of the penis, and thus the better blood flow and by the synthesis of nitric oxide causes vasodilation. It has been found that the extract of Epimedium Grandiflorum a nootropic and antioxidant properties. Epimedium Grandiflorum Extract is a component of supplements which increase sexual ability and herbal testosterone boosters improving psychophysical condition, fitness and wellness of the athlete body.