PEG-MGF
Animal / preclinicalWADA prohibitedAlso known as: Mechano Growth Factor, IGF-1Ec, Pegylated MGF
Community-reported ranges are anecdotal and not clinically validated. Evidence grade shown reflects the strength of available human data. Not a prescription. Legal status varies by country and changes over time; verify locally.
Overview
A pegylated form of mechano growth factor — the IGF-1 splice variant muscle produces in response to mechanical stress, which activates satellite cells for repair. That biology is real and well studied; product use in humans hasn't been trialled, and it is WADA-prohibited.
Mechanism
MGF (IGF-1Ec) activates muscle satellite cells and supports repair after damage in preclinical models; pegylation extends its naturally very short half-life.
Evidence
Genuine mechanistic and rodent data on satellite-cell activation and repair; injected-product efficacy in humans is untested.
Community-reported information
Community reports vary. Anecdotal and unvalidated; general information only.
General information only, not tailored to you and not a recommendation. Some regions withhold this entirely.
Half-life
Native MGF is minutes; pegylation extends this. Not well characterised in humans.
Storage
Refrigerate lyophilised and reconstituted; sensitive to degradation.
Commonly reported side effects
- Not well characterised in humans
- Injection-site reactions reported anecdotally
Legal status by region
- USNot FDA-approved for human use.
- AUPrescription-only; import controlled.
Legal status changes over time; verify locally before relying on this.