NOW Foods NOW Sports Nutrition, Tribulus, 500 mg, 100 Veg Capsules Review
A dietary supplement featuring Tribulus terrestris, a plant extract commonly used in sports nutrition to support athletic performance and male hormonal health.
Product Focus: Libido for WomenAlso graded for:Sexual Health for MenAlso covers:Sexual healthHormones
Tier ⓘ
Members see this product's tier and why. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
Biohacker Mentions
Cost per month
$3
Study, Trial or Testing Result Summary
MembersHuman studies
Review Totals and Summary
Members11,801 reviews
11,801 reviews · Vitamin360 10,370 · IHerb 1,419 · Walmart 10 · Pureformulas 2
Biohacker Summary
MembersWhat our biohacker panel says
RAL Summary
MembersThe tier and why
More Details
MembersBody systems · Combine with · Possible side effects
Supplement Facts
Tribulus terrestris 500 mg
Supplement Facts
Serving Size 1 Veg Capsule
Servings Per Container 100
Amount Per Serving% Daily Value
| Tribulus terrestris (Standardized Extract) (min. 45% Saponins) (Fruit/Aerial Parts) | 500 mg | † |
† Daily Value not established.
Directions: Take 1 capsule 1 to 3 times daily with food.
Barcode (UPC) 733739022738 · Label source: the brand's label · Report a label change
Where to Buy
NOW Foods · iHerb
More libido for women products
MembersThe highest ranked for the same goal
Graded October 23, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.

