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Not medical advice. The Atlas is not a substitute for a clinician who can examine you.

Tribulus Terrestris

Tribulus terrestris (Puncture Vine, Gokshura)

Evidence grade 1 of 5, Untested. Read how the Atlas grades evidence.

The written rationale for this grade is still being prepared.

FDA
Not FDA evaluated (dietary supplement)

Reference only. Not medical advice.

What can go wrong

Generally well tolerated. Rare reports of gynecomastia and isolated case reports of liver and kidney effects exist, sometimes tied to adulterated products. Spiny plant material (puncture vine) is unrelated to ingestion safety but explains some common names.

This is something to take to a clinician. The Atlas can tell you what is known about tribulus terrestris in general. It cannot tell you what is happening in your body, and the difference matters most for exactly the symptoms that bring people to this page.

A widely sold botanical promoted for testosterone and libido, standardized to saponins such as protodioscin. The testosterone-boosting mechanism remains unvalidated in humans: controlled trials generally fail to show meaningful testosterone increases in men, though some report subjective libido effects. Its commercial ubiquity far outstrips its evidence.

One of the best-selling 'test boosters' with one of the weakest mechanisms.

What people take it for

These are the reasons people give for taking it. They are not effects it has been shown to have.

  • Marketed for testosterone increase
  • Libido support (subjective)
  • Bodybuilding stacks

Combinations named above are how people use these compounds together, under names the community gave them. The combinations themselves have not been studied. Evidence for one compound is not evidence for a pair.

How it is supposed to work

Marketing claims protodioscin raises luteinizing hormone and thereby testosterone. Human trials largely do not confirm a testosterone effect; any libido benefit may be independent of testosterone and is inconsistently demonstrated.

The mechanism that never validated

Despite decades on the market, the proposed LH/testosterone pathway has not held up in controlled human studies. The persistence of the product owes more to entrenched marketing and the 'test booster' category than to evidence.

What people get wrong

  • Often saidTribulus raises testosterone

    ActuallyLargely unsupported in humans. The mechanism is theorized, not validated, and controlled trials generally find no testosterone increase.

Who profits, and who pushes back

  • Bodybuilding-supplement brands

    Sells this. Has a commercial interest in a product sold as this compound, as of July 2026.

    Promotes itBroad

    Long-standing affiliate and sponsored promotion in fitness media

How we got here

Tribulus terrestris (Gokshura) has long been used in Ayurvedic and Traditional Chinese Medicine for urinary and vitality complaints. It became a global sports-supplement phenomenon in the late 20th century, propelled partly by claims surrounding Eastern Bloc athletes, and remains a default ingredient in 'testosterone booster' products.

  1. AntiquityAyurvedic and TCM use
  2. Late 20th c.Adopted by sports-supplement industry
  3. 2000s-nowUbiquitous in test-booster blends despite weak evidence

At a glance

Tradition
Ayurveda (Gokshura), TCM
Active class
Steroidal saponins (protodioscin)
Testosterone evidence
Weak/negative in humans
Commercial presence
Very high

What this entry does not yet cover

What follows is unfinished work on our side, not a finding about Tribulus Terrestris. A short entry is not a safe entry.

  • Cost and market. We have not documented what it sells for or who sells it.
  • Supply chain. We have not mapped where it is made.
  • Who uses it. We have not documented the user groups.
  • What could change. No forward-looking summary yet.
  • How it compares. We have not set it against the alternatives.
  • Children and teenagers. We have not checked what is known about younger people.
  • Where we land. We have not taken a position on this yet.

Sources

The studies below are named and described, but not linked. You cannot open them from here and check our reading against them, which means this page is our summary of the literature rather than a document you can verify. Weigh it accordingly until the links exist.

The studies that matter

  • Controlled human trials (summary)various

    Most well-designed studies show no significant increase in testosterone in men; libido findings are mixed and often subjective