Tongkat Ali
Tongkat Ali (Eurycoma longifolia)
A Southeast Asian herb with strong clinical evidence for testosterone optimization, stress reduction, and body composition improvement. Andrew Huberman's primary recommendation for natural testosterone support.
How Tongkat Ali Works
Eurycomanone and other quassinoids in tongkat ali reduce cortisol, increase free testosterone by lowering SHBG, and may directly stimulate Leydig cell testosterone production.
📊 Evidence by Outcome
Multiple RCTs show 15-37% increase in total testosterone, particularly in stressed or hypogonadal men.
8 studies • Consistency: Moderate • Effect: Moderate
Reduces cortisol by 16% in stressed adults. The testosterone benefit may be partially mediated by cortisol reduction.
5 studies • Consistency: Moderate • Effect: Moderate
Key Research
Peer-Reviewed Evidence • 1 Citations
Effect of Tongkat Ali on stress hormones and psychological mood state
Talbott SM et al.•Journal of the International Society of Sports Nutrition•2013•PMID: 23705671
Key Finding: 200mg/day for 4 weeks: 37% reduction in cortisol, 16% increase in testosterone. Significant improvement in tension, anger, and confusion scores.
View on PubMedCitations sourced from PubMed, Cochrane Library, and peer-reviewed journals. Study findings are summarized for accessibility. Always consult the original publication for full methodology and results.
📋 Protocol Snapshot
Protocols are for informational purposes only. Always consult a qualified healthcare provider before starting any treatment protocol.
Cost Guide
AED 80-200/month
Estimated UAE pricing. Costs vary by provider, dosage, and treatment plan.
Where to Get It (UAE)
Related Treatments
Medical Disclaimer: The information on this page is for educational purposes only and is not intended as medical advice. Kamura Scores reflect a combination of research evidence, community data, and other factors — they are not clinical recommendations. Research citations are provided for reference; always consult the original publications for complete study details. Consult a qualified healthcare provider before starting, stopping, or modifying any treatment. Individual results may vary.