Tribulus terrestris is derived from a flowering plant throughout the world. It has been used for many years in Indian and Chinese medicinal practice and is also known as gokshura. Tribulus terrestris supplements have been used to treat infertility, erectile dysfunction, and sex drive problems. Tribulus terrestris is a natural testosterone enhancement supplement, and as such is a good alternative for those looking to boost testosterone levels without using synthetic ingredients to do such. Though tribulus terrestris has been proven to raise testosterone levels in general, the supplement is most widely used to enhance sexual health and well-being.