Yohimbe also stimulates the nervous system, with different, yet complimentary actions to that of androstenedione. Both systems play very important roles in sexual intercourse. The parasympathetic system controls arousal, initiation and maintenance of erection, up until ejaculation, when the sympathetic system takes control. Yohimbe, a selective alpha-2 blocker, blocks the stimulation of the sympathetic system, thereby enhancing ejaculation, increasing sexual duration and heightening sexual pleasure. Nettles are a native of Europe, but are also found in the US and parts of Canada.
Testosterone acts as an aphrodisiac by stimulating brain cell receptor sites.
As we age, testosterone becomes bound to serum globulin, making it unavailable to those sites. Ginkgo Biloba is known to be the oldest living tree. A native to China, Chinese physicians for centuries have used ginkgo to treat a wide range of ailments. In recent times ginkgo has been recognized for its beneficial effects in treating circulatory problems and maintaining a plentiful blood supply to the central nervous system. In this formulation, ginkgo's stimulation to circulation and the central nervous system plays a vital role in promoting physical and sexual performance, while working cooperatively with the other ingredients.