Tribulus, also known as Puncture Vine, is a plant found in many warm regions. The best known member is Tribulus Terrestris, a widespread weed proven to increase the body's natural testosterone levels, thereby improving male sexual performance and help build lean muscle.
It appears to do so by stimulating androgen receptors in the brain. Tribulus terrestris increases testosterone by increasing gonadotropin releasing hormone with gonadotropic adaptogen compound containing Tribulus terrestris (GnRH) which in turn stimulates the production of LH and follicle-stimulating hormone (FSH).
In our research, Tribulus was shown to enhance libido and erection due to the release of nitric oxide from the nerve endings innervating the corpus cavernosum (penis).