Eurycoma longifolia. Works via CORTISOL reduction (not direct testosterone synthesis). LJ100®/Physta® is the standardized extract. 200-400mg/day. Heavy metal testing mandatory (contamination common in Asian products). --- *Reviewed by the Dose AI Research Team and Clinical Advisory Board* *Last updated: 2026-04-06*
Reviewed by the Scan Dose Research Team and Clinical Advisory Board | Last updated:
Not medical advice. Based on published clinical research and systematic reviews.