MGF
(MGF)Reviewed by Fat Man in the Arena · Updated March 2026
Key Takeaway
MGF (Mechano Growth Factor) is a splice variant of IGF-1 produced in response to muscle damage, promoting satellite cell activation and muscle repair.
How it works
Activates muscle satellite cells and promotes their proliferation, supporting muscle repair and hypertrophy after exercise-induced damage.
Benefits
- Muscle repair
- Satellite cell activation
- Recovery enhancement
Side effects
- Injection site pain
- Limited human data
Dosing protocol
Typical Dose
100-200 mcg per injection
Frequency
Post-workout
PEGylated version (PEG-MGF) has extended half-life.
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Medical Disclaimer: This content is for informational and educational purposes only. It is not intended as medical advice or a substitute for professional medical consultation, diagnosis, or treatment. Always consult a qualified healthcare provider before starting any peptide protocol.