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MGF
PerformanceSingleAlso known as: Mechano Growth Factor, IGF-1Ec
A splice variant of IGF-1 produced locally in response to mechanical stress, studied for satellite-cell activation and localized muscle repair.
Half-life
0.1 h
Common dose
100 – 200 mcg
Dosing frequency
As Needed
Administration
Intramuscular, Subcutaneous
How it works
MGF activates muscle satellite cells, driving local muscle hypertrophy and repair following mechanical damage. Its very short half-life means injections must be close to trained tissue.
Protocol notes
Research dosing is 100–200 mcg post-workout, injected near worked muscle. Cycles of 4–6 weeks. PEG-MGF is the longer-acting variant for systemic effects.
Reported side effects
Injection-site reactions, hypoglycemia, water retention.