
MGF (Mechano Growth Factor, IGF-1Ec)
MGF is the IGF-1Ec splice variant expressed in response to mechanical overload. As a short, locally acting peptide, it’s studied for activating muscle satellite…
Half-life
Very short (on the order of minutes, often cited ~5–7 min) with primarily local action
Delivery
Local intramuscular or perilesional microinjections near the target muscle immediately post-session/injury in research protocols.
Suggested dosage
Not specified
Usage
Mechanism of action
Benefits (4)
- Promotes satellite cell activation and proliferation
- Supports localized muscle repair/remodeling
- May reduce recovery time after mechanical stress
- Complements later-stage IGF-1–mediated hypertrophy pathways
Side effects (4)
- Injection-site redness or irritation
- Transient localized swelling/pump sensation
- Rare dizziness or fatigue
- Theoretical risk of disproportionate tissue growth with improper use