Tongkat Ali
Eurycoma longifolia, Longjack
Root extract containing eurycomanone and other alkaloids. Inhibits SHBG to increase free testosterone, reduces cortisol, and has adaptogenic properties.
Where To Buy Tongkat Ali
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Half-Life
Unknown
Common Dose
200-400mg/day of standardized extract
Trusted Sources
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Where to buy
Ranked by reputation · prices may vary
Standardized 2% eurycomanone extract — the active compound that matters. NSF-certified facility.
Same capsule count and dose as Nutricost at a lower price. Does not specify eurycomanone standardization on the label — worth confirming COA before purchasing.
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Potential Benefits
- Clinically shown to increase free testosterone in multiple trials
- Reduces cortisol and improves stress response
- Libido and sexual function improvement
- Legal and widely available
- Potential ergogenic benefit for athletes
Risks & Downsides
- Effect size on testosterone is modest — not dramatic
- Quality varies enormously — extract ratio matters
- Takes 4-8 weeks for full effect
- May interact with blood pressure medications
- Not effective for hypogonadal men — only for natural optimization
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Educational use only: The information on this page is not medical advice. Many compounds discussed on The Stack Index are investigational substances or research chemicals that are not FDA approved for human use.
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