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HORMONAL SUPPORT

Tribulus Terrestris (90% Saponins)

Libido · sexual function (both sexes)

MODERATE EVIDENCEVEGANREAD THE RESEARCH
Written to our editorial standards · reviewed against published research· Updated 2 Jun 2026
Last reviewed: May 30, 2026
QUICK ANSWER

Tribulus Terrestris: Libido · sexual function (both sexes). An Ayurvedic herb traditionally used to support sexual desire and function. Evidence is stronger for libido than testosterone. Standard dose 500 mg, taken in the morning, about $18/month. Evidence rating: moderate evidence.

What is Tribulus Terrestris?

Tribulus terrestris is a small flowering plant used for centuries in Ayurvedic and traditional Chinese medicine. Its active compounds, steroidal saponins, particularly protodioscin, have been investigated for libido, erectile function, and athletic performance. While tribulus does not reliably raise testosterone in healthy men, multiple placebo-controlled trials do show meaningful improvements in self-reported libido and sexual satisfaction in both men and women. Standard dose is 250-1500 mg per day of extract standardized to ≥45% saponins (Bulgarian-sourced is traditionally preferred).

WHY IT MATTERS

An Ayurvedic herb traditionally used to support sexual desire and function. Evidence is stronger for libido than testosterone.

Where to buy

NOW Foods Tribulus 1000mg (45% Saponins)
RECOMMENDED
NOW Foods, Tribulus Terrestris
500 mg · Morning · ~$18/month

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Common questions

What is Tribulus Terrestris?
Tribulus terrestris is a small flowering plant used for centuries in Ayurvedic and traditional Chinese medicine. Its active compounds, steroidal saponins, particularly protodioscin, have been investigated for libido, erectile function, and athletic performance. While tribulus does not reliably raise testosterone in healthy men, multiple placebo-controlled trials do show meaningful improvements in self-reported libido and sexual satisfaction in both men and women. Standard dose is 250-1500 mg per day of extract standardized to ≥45% saponins (Bulgarian-sourced is traditionally preferred).
What is Tribulus Terrestris used for?
Libido · sexual function (both sexes). An Ayurvedic herb traditionally used to support sexual desire and function. Evidence is stronger for libido than testosterone.
What is the standard dose of Tribulus Terrestris?
500 mg, typically taken in the morning. Approximate cost is $18 per month.
How strong is the evidence for Tribulus Terrestris?
Moderate evidence for its primary uses. See the full study list on the research page.

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