Tribulus Terrestris
Botanical supplement marketed for sexual function, testosterone, and exercise claims. Clinical reviews do not support treating Tribulus as a reliable testosterone booster, and any erectile-function signal is based on a small, heterogeneous evidence base.
Pharmacokinetic model
A route-level PK model for tribulus terrestris is being prepared from published data. Dosing references, studies, and documented interactions are below; the app catalog is updated as models are validated.
Key facts
- Category
- Herb
- Suggested cadence
- once daily
Research behind this entry
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Effects of Tribulus (Tribulus terrestris L.) Supplementation on Erectile Dysfunction and Testosterone Levels in Men—A Systematic Review of Clinical Trials
Systematic review found some erectile-function signals but no consistent evidence that Tribulus raises testosterone in men. Included trials varied in extracts, doses, populations, and quality, limiting generalization.
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The Effects of 6 Weeks of Tribulus terrestris L. Supplementation on Body Composition, Hormonal Response, Perceived Exertion, and CrossFit Performance: A Randomized, Single-Blind, Placebo-Controlled Study
Six-week randomized single-blind study evaluated one Tribulus preparation in trained CrossFit participants. The small, product-specific study does not establish a general hormone or performance effect across commercial…
2 published studies referenced in the app, each with a plain-language summary.