Tribulus is a genus of plants found in many warm regions. It has a widespread use as a dietary supplement claimed to increase the body's natural testosterone levels and thereby improve male sexual performance and help build muscle. The thorny fruit is said to have the maximum content of steroidal saponins. However, the whole plant is used in its dry form for extraction due to its feasibility. Research on Tribulus has shown to enhance sexual behavior in some animal studies by stimulating androgen receptors in the brain.