Save $25 off $125+ Code: NOV25
Save $25 off $125+ Code: NOV25
Save $25 off $125+ Code: NOV25
* Increases testosterone levels by increasing luteinizing hormone (LH) levels
Read Below: FullDescription, Clinical Studies & Research on Tribulus.
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Lifesource Vitamins Tribulus Extract — 1,300 mg, Capsules, 90 — Supports Libido & Testosterone*
Lifesource Vitamins Tribulus Extract delivers 1,300 mg of clinically studied Tribulus terrestris (45% saponins) to support libido, testosterone levels, and athletic performance. Crafted in FDA-registered, GMP-certified facilities for trusted quality.*
At Lifesource Vitamins, our commitment is rooted in research and results. The benefits below are backed by clinical studies and supported by trusted sources, including the NIH, WHO, Mayo Clinic, Cleveland Clinic, Cambridge University, American Academy of Dermatology, Journal of the American Academy of Dermatology, proDERM Institute, European Food Safety Authority, and leading academic institutions.
We continually review research from top institutions—including Mayo Clinic, Cleveland Clinic, Harvard, Johns Hopkins, Cambridge University, American Academy of Dermatology, WHO Global Traditional Medicine Centre, proDERM Institute, Dermatest, Oregon State University's Linus Pauling Institute, Tufts, Boston University, Cornell, Columbia, Ohio State, and American Botanical Council—to ensure our recommendations remain grounded in the most credible science.
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Take two (2) capsules daily with a meal or glass of water, or as directed by a healthcare professional. Do not exceed 3 months of continuous use; take a 2–4 week break to avoid tolerance. If pregnant, nursing, taking medications (e.g., for heart, blood pressure, or diabetes), or have a medical condition (e.g., prostate issues, diabetes), consult your physician.*
Tribulus terrestris (45% Saponins) — Supports testosterone, libido, and athletic performance.* (NIH/PubMed 2025)
Vegetable Cellulose — Provides a non-GMO, allergen-free capsule.*
3rd Party Testing: Every batch is verified by independent labs for identity, potency, and purity. Click here to see our 3rd-party testing.
Lifesource Vitamins — Proudly American — Since 1992
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your physician before taking any supplements.
Boost libido & testosterone with Lifesource Vitamins Tribulus Extract 1,300 mg Capsules! Supports vitality. 3rd Party Tested & Backed by PubMed and NIH studies!

*Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your physician before taking any supplements. Individual results may vary. This information is not intended to replace your healthcare provider but to support and enhance that relationship. You are encouraged to do your own research and take an active role in your health decisions. If you are pregnant, nursing, taking medications, or have any medical conditions, consult your healthcare professional before using any supplements discussed on this site.