Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Epitalon | PEG-MGF (Pegylated Mechano Growth Factor) | |
|---|---|---|
| Category | Growth Factors | Growth Factors |
| Standard Dose | — | Research indicates 200-500 mcg administered 2-3 times per week via subcutaneous or intramuscular injection. |
| Timing | — | On non-training days or several hours post-workout (to avoid competing with natural MGF pulse). Unlike native MGF, timing is more flexible due to extended half-life. |
| Cycle Duration | — | 4-8 week cycles. |
| Evidence Level | Emerging | animal_plus_anecdotal |
Synthetic tetrapeptide studied in Russian longevity literature for pineal signaling, circadian regulation, and telomerase-related hypotheses.
PEG-MGF is the pegylated form of Mechano Growth Factor, where polyethylene glycol (PEG) molecules are covalently attached to protect against rapid enzymatic breakdown. This extends the half-life from 5-7 minutes (native MGF) to approximately 48-72 hours. Like native MGF, it activates satellite cell proliferation, promotes muscle fiber regeneration and hypertrophy, and supports tissue repair. The extended half-life allows for systemic distribution rather than purely local action, enabling subcutaneous rather than intramuscular administration.
Research indicates 200-500 mcg administered 2-3 times per week via subcutaneous or intramuscular injection.
On non-training days or several hours post-workout (to avoid competing with natural MGF pulse). Unlike native MGF, timing is more flexible due to extended half-life.
4-8 week cycles.
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