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3Medicinal

Tribulus terrestris

Also sold as Puncture vine, tribulus

Long sold as a testosterone booster; controlled trials in men mostly show no testosterone increase, though some show effects on libido.

TrustedSupp Tier System™ · Tier 3Take as a defined course
Check before you startThis one has documented interactions with medication classes where the consequences are serious. If you take any prescription medicine, run it past a pharmacist before starting.

Evidence strength

20/100Weak
WEAKLIMITEDMODERATESTRONGVERY STRONG

What the evidence supports: libido measures in some small trials; testosterone claims are not supported.

This scores how well-supported the claim above is — not how much benefit you personally would get. A high score on a narrow claim does not extend to everything the product is marketed for.

How long to take it

Short courses of 8–12 weeks at most.

Who it's actually for

People exploring libido support with low expectations; not an effective testosterone booster based on trials.

Safe upper limit

Unverified
No formal upper limit; 250–750 mg daily in trials
Generally well tolerated short term. Rare case reports of liver and kidney injury exist. It has a mild diuretic effect.
No source or citation attached yet.

Interactions to know about

Run your full list through the interaction check.

Practical notes

  • Trials in healthy men generally show no rise in testosterone.
  • May lower blood sugar and has a mild diuretic effect.
  • Avoid in pregnancy.