$39
$19.5/mg
-9% vs median/mg
Vendor catalog Compound: 1 COALive data
Availability
In stock
Last checked
3 hours ago
All compounds0%
Growth factor peptide
Live dataPEG-MGF
Muscle & performanceRecovery & healing
A polyethylene-glycol-conjugated (pegylated) form of the mechano growth factor peptide.
Pegylated MGFPEG MGFPegylated Mechano Growth Factor
Observed median price
$48
8
Active listings
1 · 99.5%
Independent lab tests
$39–$88
Observed price range
4
Known aliases
Read from the certificate, not re-measured by VialGrade.
Understand this compound
What is PEG-MGF?
Preclinical / animal onlyA longer-acting pegylated MGF studied in muscle-recovery research.
Muscle & performanceRecovery & healing
⚠
Good to know: Turning a naturally local, transient signal into a systemic, long-lived one is a significant departure from its physiological role, with unknown off-target and long-term effects in humans.
How does PEG-MGF work?
A PEGylated (polyethylene-glycol-modified) version of MGF; shares MGF's satellite-cell-activating mechanism, but PEGylation shields it from rapid proteolysis, extending systemic half-life to roughly 48-72 hours instead of minutes.
Mechanism of action from published research — how the molecule behaves, not a claim about any product or any human-use effect.
What is PEG-MGF researched for?
Studied, largely by extrapolation from MGF biology, for systemic muscle repair and hypertrophy signaling.
- Muscle & performanceStudied in muscle-growth, repair, and physical-performance research.
- Recovery & healingStudied in tissue-repair research — tendon, ligament, muscle, and wound-healing models.
How far has the research gone?
Preclinical / animal research; human data are essentially absent, and it is used mainly in non-clinical research settings.
Where the science stands — an approved drug is not the same as the research-grade material a vendor sells, which is unregulated regardless.
What should I check before buying?
- Independent purity. Look for a third-party COA (Janoshik or MZ) showing a measured purity — not just a number the vendor typed.
- Batch match. The strongest evidence is a certificate for the exact batch you’ll receive, attributed to this vendor — check the cross-verification on the listing.
- Vendor reputation. See how the vendor is talked about in the community before trusting a new name.
Research context only — VialGrade never gives dosing, medical, or human-use guidance.
US legal statusBanned in drug-tested sport (WADA/USADA)
Research-use-only — not FDA-approved
Sold “for research use only,” this compound is not FDA-approved for human use and has not been evaluated for safety, purity, or sterility in people. It is generally not a scheduled controlled substance, so buying it as a research chemical is typically not itself a drug crime — but marketing or using it as a drug is not lawful, and it is not a dietary supplement.
Read the full US legal overview →General information, not legal or medical advice. VialGrade sells nothing and encourages no human use.
Compare by real cost
Cheapest PEG-MGF, by price per mg
Vials come in different sizes, so the sticker price lies. This ranks every listing by what a milligram actually costs — with independent test purity where we have it.
| # | Vendor | Size | Price | Per mg | Tested purity | Real $/active mg | |
|---|---|---|---|---|---|---|---|
| 1 | Umbrella Labs | 5mg total | $81 | $16.2/mg | — | $16.3/mgbest value | View |
| 2 | Simple Peptide | 2mg total | $39 | $19.5/mg | — | $19.6/mg | View |
| 3 | Modern Aminos | 2mg total | $39 | $19.5/mg | — | $19.6/mg | View |
| 4 | Sports Technology Labs | 2mg total | $47 | $23.5/mg | 99.5% | $23.6/mg | View |
| 5 | Peptide Pros | 2mg total | $47 | $23.6/mg | — | $23.8/mg | View |
| 6 | Swiss Chems | 2mg total | $48 | $24.0/mg | — | $24.1/mg | View |
Real $/active mg divides the price-per-mg by the measured purity — the honest cost of the actual peptide, so a 90%-pure vial isn’t compared as if it were 99%. Too cheap? flags a listing far below the market rate — often underdosing or a fake, not a deal. The crown marks the cheapest non-outlier; best value marks the lowest real cost per active mg.
Current market
All PEG-MGF listings
$39
$19.5/mg
-9% vs median/mg
Testing unverified Compound: 1 COALive data
Availability
Unavailable
Last checked
2 hours ago
$47
$23.5/mg
+9% vs median/mg
Independent test Independently testedLive data
Availability
In stock
Last checked
3 hours ago
$47
$23.6/mg
+10% vs median/mg
Vendor catalog Compound: 1 COALive data
Availability
In stock
Last checked
1 hour ago
$48
$24.0/mg
+12% vs median/mg
Vendor catalog Compound: 1 COALive data
Availability
In stock
Last checked
3 hours ago
$66
Vendor catalog Compound: 1 COALive data
Availability
In stock
Last checked
3 hours ago
$81
$16.2/mg
-25% vs median/mg
Vendor catalog Compound: 1 COALive data
Availability
In stock
Last checked
2 hours ago
$88
Vendor catalog Compound: 1 COALive data
Availability
In stock
Last checked
8 days ago
Independent testing
PEG-MGF — independent lab tests
Real, publicly verifiable third-party tests. Purity is read from the certificate itself. A test reflects one lab’s result for one submitted batch — not a guarantee that every vial matches.
How does this data get here?
Every record below is a real certificate of analysis, gathered two ways: from the public verification feeds that independent labs (like Janoshik) publish, and from the certificates vendors post on their own product pages. We open each certificate document and read the measured purity, content, batch, and date directly off it — a scraper can’t read a number printed inside an image, so this is done by machine vision, then recorded here with a link back to the original.
Nothing here is typed in by a vendor or invented by us. Where a certificate is missing, we say so rather than filling the gap.
We re-check the lab feed, too. A “still listed” tag means the certificate is currently public in Janoshik’s database — we re-verify against the live feed and stamp the date. If a cert is later pulled, the tag flips. It’s a freshness check on the same source, not a second independent opinion.
What a certificate does & doesn’t prove
Three different questions. Purity (“how clean?”), identity (“is it the right molecule?”, a mass-spec test), and content (“did I get the labeled mg?”) are separate. A vial can be 99% pure and still be the wrong peptide, or the right peptide underdosed. We flag the measured dose against the label above; underdosing is the most common real fraud.
Who submitted the sample matters. Most of these are vendor-submitted — the seller chose which vial to send, so one good certificate doesn’t prove every batch is the same. The gold standard is a blind test, where a buyer sends a vial they bought as a normal customer. Same label doesn’t prove same product; same batch number doesn’t prove same batch.
99.5%
highest tested purity
| Certificate | Manufacturer | Batch | Purity | Content / dose | Lab | |
|---|---|---|---|---|---|---|
 | Sports Technology Labs | 2025-10-06 | 99.45% | — | MZ Biolabs | View |
Tested batches
Batch test records for PEG-MGF
The full test history for one batch — who picked the sample, who tested it, and what came back. It describes the vials that were tested, never every vial they sold.
Research notes aren’t product proof
Research summaries describe published literature and market data only. They do not establish the identity, quality, safety, or legal status of any listed physical product.