Compound Library

Supplement / Performance

Epicatechin

Dark chocolate flavanol. Natural myostatin inhibitor. Inhibits myostatin (muscle growth limiter) and activates follistatin. Modest anabolic effect without androgenic activity.

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Educational reference only. This page does not diagnose, prescribe, or replace care from a licensed professional. Laws, availability, and clinical appropriateness vary by location.
Reference dose50–250 mg/day (from dark chocolate or extract)
Half-life4 hours
Risk flaglow
Regulatory noteReview required

Side effects and watch-outs

  • GI distress at high doses
  • Generally extremely well tolerated
  • Caffeine content in chocolate form — account for total caffeine intake
  • Mild diuretic effect