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AdaptogensCycle recommended
Tongkat Ali (Eurycoma longifolia)
Southeast Asian herb studied for testosterone support and stress reduction.
What it is
Tongkat Ali (Eurycoma longifolia) is a traditional Southeast Asian medicinal plant. Standardized root extracts are studied for hormonal and adaptogenic effects.
How it works
May reduce SHBG to increase free testosterone; quassinoids modulate cortisol; supports HPG axis signaling.
What the evidence says
Emerging evidence for modest testosterone and cortisol modulation; more research needed in healthy young males.
Safety Notes
- Look for patented extracts (LJ100, Physta) with standardized eurycomanone content. Quality varies widely.
- Cycling: 5 days on, 2 days off, or 8 weeks on, 2 weeks off.
- Not recommended during pregnancy or while breastfeeding.
- Use caution with: hormone-sensitive cancers (avoid), pregnancy, breastfeeding.
- testosterone replacement therapy: Additive hormonal effects; consult physician.
- blood pressure medications: May lower blood pressure slightly; monitor.