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Tribulus Terrestris Extract

Botanicalhormone supportLimited dose evidence

Also known as: Tribulus terrestris, puncture vine, gokshura, protodioscin

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A fruit and aerial-part extract standardized to steroidal saponins, marketed heavily for testosterone and muscle building. A systematic review of the evidence found that its reputation for raising testosterone in healthy people is not supported by controlled human trials, although some studies report effects on libido and sexual function. It remains popular because of consumer demand, so it is best positioned for libido rather than hormone claims, and confidence in any dose-response is low.

Research summary

Protodioscin and related saponins are proposed to influence androgen receptor density and nitric oxide release, but human hormone changes have not been consistently demonstrated.

LibidoMen's hormones

Dosage

Daily amounts, of extract.

Lowest studiedTypical rangeHighest studiedUpper limit
—500–1,500 mg——

500 to 1,500 mg per day of a 40 to 60% saponin extract, split with meals. Trials on libido typically ran four to twelve weeks. Saponin content and protodioscin levels vary by plant part and origin, so specify both.

Standardization: 40–60% saponins

Source material: fruit and aerial-part extract

Format suitability

  • Capsule
  • Powder
  • Tablet
  • Softgel
  • Gummy
  • Liquid

Bitter; capsules or tablets preferred at these doses.

Formulation notes

Often combined with maca, tongkat ali, or zinc in libido products. Evidence for testosterone effects is weak; keep marketing to libido and vitality language.

  • Not for pregnancy

Sources

  1. A systematic review on the herbal extract Tribulus terrestris and the roots of its putative aphrodisiac and performance enhancing effect. (Qureshi 2014)PubMed
  2. Tribulus Terrestris — ExamineExamine

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