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Tribulus Terrestris (90% Saponins)

Libido · sexual function (both sexes)

Moderate evidenceVegan50 studies on PubMedRead the research
Written to our editorial standards · reviewed against published research· Updated 30 May 2026
Last reviewed: May 30, 2026

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.

Where to buy

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

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NOW Foods Tribulus 1000mg (45% Saponins)Bestseller
Tribulus 1000mg (45% Saponins)
NOW Foods
90 tablets · $18 · ★ 4.5
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NOW Foods Tribulus 1000 mgBestseller
Tribulus 1000 mg
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90 tablets · $14 · ★ 4.6
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Optimum Nutrition Tribulus 625Best Value
Tribulus 625
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100 capsules · $16 · ★ 4.6
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240 capsules · $17 · ★ 4.5
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Swanson TribulusPremium
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90 capsules · $11 · ★ 4.5
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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).

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

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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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