PEG-MGF — Vendor Pricing & Purity Guide
Research Overview
PEG-MGF (PEGylated Mechano Growth Factor) is a modified form of MGF, a splice variant of IGF-1 that is expressed in response to mechanical stress on muscle tissue (exercise). The PEGylation (attachment of polyethylene glycol chains) extends its half-life from minutes to hours, allowing systemic administration rather than purely local effects.
MGF is naturally produced when muscle fibers are damaged during exercise. It activates satellite cells (muscle stem cells) and promotes their proliferation before they differentiate into mature muscle fibers. This makes MGF/PEG-MGF unique among growth factors — it specifically targets the stem cell stage of muscle repair.
Key Research Findings
- •Activates muscle satellite cells (stem cells) to proliferate before differentiating
- •Extended half-life (hours vs minutes) compared to native MGF due to PEGylation
- •Expressed naturally in response to mechanical muscle damage (exercise-induced)
- •Promotes muscle repair at the stem cell stage rather than just hypertrophy of existing fibers
- •Synergistic with IGF-1 LR3 — MGF activates satellite cells, IGF-1 LR3 promotes their maturation
Research Dosage Protocols
PEG-MGF is supplied as lyophilized powder reconstituted with bacteriostatic water. Research protocols typically use localized subcutaneous or intramuscular injection near target muscle groups. Standard research doses are 100-200 mcg per site.
For research reference only. Not medical advice. Not for human consumption.
Price Comparison (9 products from 9 vendors)
| Vendor | Price | Stock |
|---|---|---|
| Core Peptides | $63.00 $12.60/mg 5mg vial | In Stock |
| Paradigm Peptides | $30.00 $15.00/mg 2mg lyophilized | In Stock |
| Biotech Peptides | $79.00 $15.80/mg 5mg vial | In Stock |
| BioLongevity Labs | $94.97 $18.99/mg 5mg vial | In Stock |
| Peptide Sciences | $95.00 $19.00/mg 5mg lyophilized | In Stock |
| Simple Peptide | $39.00 $19.50/mg 2mg lyophilized | In Stock |
| Swiss Chems | $47.95 $23.98/mg 2mg vial | In Stock |
| Pure Rawz | $66.32 $33.16/mg 2mg vial | In Stock |
| Soma Chems | $49.99 vial | In Stock |
Frequently Asked Questions
What is PEG-MGF?
PEG-MGF is a PEGylated form of Mechano Growth Factor, a splice variant of IGF-1 that activates muscle stem cells in response to mechanical stress. PEGylation extends its half-life for systemic research use.
How does PEG-MGF differ from IGF-1 LR3?
PEG-MGF activates satellite cells (muscle stem cell proliferation). IGF-1 LR3 promotes satellite cell differentiation and muscle protein synthesis. They work on sequential stages of muscle repair.