Tribulus terrestris is a plant that grows in tropical and moderate climates around the world. Many different cultures have used it for a number of benefits. Studies have shown it to be a potent supplement that allows the body to naturally increase testosterone, possibly allowing for greater muscle growth, increased strength and stamina.
Studies show that it also works very well for increasing sex drive. It increases testosterone levels in a different way, however, than DHEA. Instead of being a testosterone precursor, tribulus leads to the production of the luteinizing hormone (LH). When LH levels are increased, the natural production of testosterone also increases.