MGF
(MGF)
Written by Alejandro Reyes
Founder & Lead Researcher
Reviewed by Peptide Nerds Editorial · Updated April 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.
| Type | Growth Hormone |
| FDA Status | Research Only |
| Evidence Level | Preliminary |
| Typical Dose | 100-200 mcg per injection |
| Frequency | Post-workout |
| Key Goals | muscle-growth |
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.
Deeper on MGF
Full breakdowns of every part of the MGF research base.
What you will need
Basic supplies for reconstitution and subcutaneous injection.
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Bacteriostatic Water (30mL)
$8-15Required for reconstituting lyophilized peptides. 30mL is standard.
Insulin Syringes (1mL, 29ga)
$12-20 (100ct)1mL insulin syringes with 29-gauge needles for subcutaneous injection.
Alcohol Prep Pads
$5-10 (200ct)Sterile 70% isopropyl alcohol wipes for injection site prep.
Sharps Container
$8-15FDA-cleared sharps disposal container for used needles. See FDA guidance for compliant containers.
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Dosing quick-reference, key studies, and side effect management — in your inbox.
Get the MGF cheat sheet
Dosing quick-reference, key studies, and side effect management — in your inbox.
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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.