Tribulus Terrestris

adaptogen · endocrine · reproductive · Oral

Tribulus Terrestris, an adaptogen. Saponin-rich extract (protodioscin standardized). Marketed for testosterone + libido; multiple RCTs show no… Oral half-life 4 h.

Saponin-rich extract (protodioscin standardized). Marketed for testosterone + libido; multiple RCTs show no testosterone effect in men, slight libido improvement in postmenopausal women. Animal studies suggest NO-mediated erectile effect via androgen-independent pathway.