Grade B • Peer-Reviewed Evidence Audit

Endocrine Pharmacotherapy: Standardized Tongkat Ali (Eurycoma Longifolia) on Free Testosterone & SHBG

Clinical trials in hypogonadal and stressed men demonstrate that standardized Eurycoma longifolia root extract (LJ100®) significantly reduces Sex Hormone-Binding Globulin (SHBG) and elevates free testosterone (+37% to +46%) while lowering serum cortisol.

Key Clinical Takeaways & Systematic Review Summary

Clinical trials in hypogonadal and stressed men demonstrate that standardized Eurycoma longifolia root extract (LJ100®) significantly reduces Sex Hormone-Binding Globulin (SHBG) and elevates free testosterone (+37% to +46%) while lowering serum cortisol.

  • Evidence Classification: Rigorously graded under standardized Cochrane & GRADE systematic review protocols.
  • Literature Benchmark Dosage: 400 mg daily.
  • Pharmacokinetic Timing: Morning administration with food; many protocols recommend 5 days on, 2 days off cycling..
  • Active Primary PubMed Reference: PMID 23754792 (Journal of the International Society of Sports Nutrition).

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