Tribulusopen_in_newbotanicalTribulus (Tribulus terrestris) is an herb used in Ayurveda and Traditional Chinese Medicine for its potential to support libido and sexual function. It is also popular for athletic performance and muscle growth, although evidence for these benefits is mixed. Its steroidal...$22.29 median price$0.53 per serving$0.37 per 100 mg250 mg per serving Show details expand_more