Tongkat has more human data than most “test boosters,” which is a low bar. Effects on total testosterone are modest and population-dependent. Standardized root extract beats mystery bark powder from a marketplace listing.
Supplements
Limited evidence
Tongkat Ali
Eurycoma longifolia, the testosterone-adjacent root.
How to use
200–400 mg standardized extract in the morning for 4–8 weeks, then reassess.
Details
- Ingredients
- Eurycoma longifolia
- Benefits
- Libido, Stress-related testosterone support
- Dosage
- 200–400 mg extract
- When to take
- Morning
- Side effects
- Insomnia, irritability, possible restlessness.
- Scientific evidence
- Small RCTs in men; quality and eurycomanone standardization vary wildly.
- Form
- Capsule
- Third-party tested
- Yes
Editorial rating ★ 3.7
A cautious trial if stress and libido are the complaint. Labs beat anecdotes.
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