What it is claimed to help
These are the uses attached to PEG-MGF in research, clinical practice, or marketing. Listing a claim is not endorsing it — tap any of them to see every other compound carrying the same claim.
What the human evidence actually is
Preclinical animal and cell work. No meaningful human evidence.
None. MGF is a genuine IGF-1 splice variant produced by mechanically loaded muscle, and rodent work supports satellite cell activation. No human efficacy or safety trials exist for injected MGF or its pegylated form.
How it is supposed to work
The unique E-domain of the IGF-1Ec splice variant is proposed to activate satellite cells independently of the IGF-1 receptor.
Safety
No human data. Pegylation changes clearance in ways not characterised for this peptide.
Storage and handling
Lyophilised peptide is generally stored at 2–8 °C, or below −20 °C for long-term storage. Reconstituted in bacteriostatic water (0.9% benzyl alcohol) a solution is typically treated as usable for about 28 days refrigerated, versus roughly 24 hours for plain sterile water, which has no preservative. Add the water slowly down the vial wall and swirl — never shake, which shears peptide chains and foams the solution.
Whatever number a protocol or a prescriber gave you, converting it into syringe units is where a misplaced decimal becomes a tenfold error. Our calculators do that conversion and nothing else — they never invent a dose.
Open the calculatorsSources
- Goldspink G et al. Mechano growth factor research
- FDA PCAC scheduling notice, April 2026
- WADA Prohibited List
Verified against primary sources on 27 August 2026. Regulatory status in this field changes several times a year. See How We Rate Evidence.