It has been employed as an herbal supplement diuretic, antiseptic, anti-inflammatory and as a mood enhancing tonic. tribulus is most well-known for its ability in improving libido and treating infertility problems in both men and women. Studies have shown that tribulus can boost the production of luteinizing hormone (LH) in the body. LH is the hormone that signals the body to start making testosterone and thus, enhance sex drive. What’s more, research has also indicated that tribulus increases sperm count. Because it indirectly increases testosterone levels, tribulus is also popular among athletes. Bodybuilders have interest in supplementing their diet with tribulus as many are experiencing increased muscle size, stamina and strength. Studies have shown that consuming a combination of tribulus, DHEA and adrostenedione supplements is an effective way of raising testosterone levels, particularly for increasing strength and building muscle mass.