For Research Purposes Only. This page summarizes published preclinical and clinical research. It does not constitute medical advice and is not a recommendation for human use.
PEG-MGF
PEGylated mechano growth factor — an IGF-1 splice variant expressed in muscle after mechanical load or damage.
01 · What is PEG-MGF?
PEG-MGF is the PEGylated form of mechano growth factor, an IGF-1 splice variant expressed in muscle tissue in response to mechanical load or damage. Native MGF has a half-life of minutes; PEGylation (attachment of polyethylene glycol) extends it substantially. It is studied in muscle repair and regeneration research.
Sizes currently sold by tracked vendors: 20mg, 2mg, 5mg.
02 · Price comparison
Prices last checked Oct 26, 2026| Vendor | Sizes | Price range | Best $/mg | Stock |
|---|---|---|---|---|
| Peptidology | 1 | $43.50 | $8.70 | In stock |
| Go Alpha Labs | 2 | $31.49 – $236.59 | $11.83 | In stock |
| Umbrella LabsVerified | 2 | $39.99 – $75.99 | $15.20 | In stock |
| Biotech Peptides | 1 | $79.00 | $15.80 | In stock |
| Raw AminoVerified | 1 | $87.00 | $17.40 | Out of stock |
| Biolongevity Labs | 1 | $94.97 | $18.99 | Out of stock |
| Simple Peptide | 1 | $39.00 | $19.50 | In stock |
| Paramount Peptides | 1 | $119.00 | $23.80 | In stock |
| Swiss Chems | 2 | $47.95 – $479.50 | $23.98 | In stock |
| Behemoth Labz | 1 | $88.46 | $44.23 | In stock |
10 vendors tracked · prices scraped weekly from vendor sites · open full comparison table →
03 · Third-party purity data
Full data at peptigrity.com ↗Independent HPLC test results — averages across multiple samples.
04 · Frequently asked questions
What is PEG-MGF?
PEG-MGF is the PEGylated form of mechano growth factor, an IGF-1 splice variant expressed in muscle tissue in response to mechanical load or damage. Native MGF has a half-life of minutes; PEGylation (attachment of polyethylene glycol) extends it substantially. It is studied in muscle repair and regeneration research.
Is PEG-MGF FDA approved?
No. PEG-MGF is not FDA-approved and is sold as a research chemical.
How much does PEG-MGF cost?
Across 10 vendors tracked by PepVendors, PEG-MGF currently runs $8.70–$44.23 per mg at each vendor's best price tier (8 showing in stock). Vial prices and size tiers vary — the live comparison table on this page lists current pricing.
Which vendors have third-party purity data for PEG-MGF?
Independent labs (Finnrick Analytics, Janoshik) have published HPLC purity results for 6 samples of PEG-MGF or its components: Biotech Peptides (99.8%), Peptidology (99.8%), Biolongevity Labs (99.7%), Core Peptides (99.5%), Loti Labs (99.2%), Paramount Peptides (98.0%). A grade A (≥98%) is the appropriate baseline for research use — check the linked lab reports for batch-level detail and fill-accuracy data.