Contains 4-hydroxyisoleucine (insulin sensitizer) and furostanolic saponins (testosterone support). Testofen® (600mg/day) increased free testosterone by 98% vs placebo over 12 weeks in one study. Also increases breast milk production (galactagogue). The 'maple syrup smell' side effect is from sotolone in sweat/urine. --- *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.