MGF
IGF-1 splice variant. Muscle repair and growth research.
For research use only · Not for human consumption
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The research base
Mechano-sensitive IGF-1 splice variant studied for local muscle repair and satellite cell activation.
How it works
A splice variant of IGF-1 expressed in response to mechanical loading. Activates satellite cells for muscle repair before systemic IGF-1 effects.
Common research protocols
Standard MGF has a very short half-life (minutes); PEG-MGF is pegylated for extended action. Researched for localized muscle repair timing.
As a solo compound
Often researched post-training; PEG-MGF is the longer-acting form.
What to know
Injection-site effects possible; generally well-tolerated in studies.
Realistic expectations
4-8 weeks