Tribulus terrestris is one of the most marketed "testosterone boosters" — and one of the most thoroughly debunked. Our research shows multiple well-designed trials found NO effect on testosterone, LH, or FSH in healthy men. The only populations that may benefit are those with specific sexual dysfunction or very low baseline libido. If you're buying tribulus for testosterone, you're wasting money.
May have mild diuretic/BP effects
Animal data shows glucose-lowering; monitor in diabetics
Diuretic properties may increase lithium levels
Not Prohibited
Neychev VK, Mitev VI. The aphrodisiac herb Tribulus terrestris does not influence androgen production in young men.
Qureshi A et al. A systematic review on the herbal extract Tribulus terrestris and the roots of its putative aphrodisiac and pro-erectile activity.
Rogerson S et al. The effect of five weeks of Tribulus terrestris supplementation on muscle strength and body composition during resistance training.
Reviewed by the Scan Dose Research Team and Clinical Advisory Board | Last updated: April 2026
Not medical advice. Based on published clinical research and systematic reviews.