Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Epicatechin | Leucine | |
|---|---|---|
| Category | Training Compounds | Training Compounds |
| Standard Dose | — | — |
| Timing | — | — |
| Cycle Duration | — | — |
| Evidence Level | Moderate | Strong |
Cacao-derived flavanol that inhibits myostatin and increases follistatin, shifting the balance toward muscle growth. Also stimulates mitochondrial biogenesis and nitric oxide production. Improves grip strength and muscle recovery without being anabolic in the traditional sense.
Branched-chain amino acid that directly stimulates mTORC1 signaling and helps trigger muscle protein synthesis when protein meals are under-dosed.
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