This potent herb, also known as puncture vine, grows in many parts of the world but favors tropical climates. Traditionally used to boost libido and treat male infertility. Tribulus Terrestris is used by body builders to naturally enhance testosterone levels helping to increase strength and muscle mass. Tribulus has also been noted for its energy enhancing abilities. This non-hormonal supplement works within your body to help raise the level of Luteinizing Hormone (a hormone important for stimulating the production of testosterone). A safe and effective supplement ideal for body builders and those looking for a boost in vitality, stamina and libido.