Tongkat Ali (Eurycoma longifolia) is a powerful herbal supplement known for its testosterone-boosting and adaptogenic properties. It works by increasing the production of luteinizing hormone (LH), which stimulates the testes to produce more testosterone naturally. In addition to enhancing testosterone levels, Tongkat Ali improves muscle strength, reduces cortisol levels, and supports sexual health and overall vitality. Studies have shown that consistent use of Tongkat Ali improves energy levels, mental clarity, and physical performance.
Tongkat Ali increases the release of luteinizing hormone (LH), which stimulates the Leydig cells in the testes to produce more testosterone. It also lowers cortisol levels, which helps maintain a balanced testosterone-to-cortisol ratio — essential for muscle growth and recovery. Increased testosterone levels support improved libido, muscle mass, strength, and mental clarity. Tongkat Ali also contains quassinoids, which have anti-inflammatory and adaptogenic properties, improving stress resilience and physical performance.
- Tongkat Ali and Testosterone Production
Tambi, M. I., Imran, M. K., & Henkel, R. R. (2012). Standardised Eurycoma longifolia Jack extract increases androgen levels and muscle strength in men. Phytotherapy Research, 26(4), 479–487.
This study showed that Tongkat Ali supplementation increased testosterone levels and muscle strength in healthy men.
- Tongkat Ali and Cortisol Reduction
Talbott, S. M., Talbott, J. A., & George, A. (2013). Effect of Tongkat Ali on stress hormones and psychological mood state in moderately stressed subjects. Journal of the International Society of Sports Nutrition, 10(1), 28.
Research demonstrated that Tongkat Ali reduces cortisol levels and improves mood and stress resilience.
- Tongkat Ali and Sexual Health
Ismail, S. B., Wan Mohammad, W. M. Z., George, A., Nik Hussain, N. H., Musthapa, K., & Liske, E. (2012). Randomized clinical trial on the use of Tongkat Ali extract in improving male sexual health. Evidence-Based Complementary and Alternative Medicine, 2012.
This study found that Tongkat Ali improved libido, erectile function, and sexual satisfaction.