No independent test of Core Peptides' MGF yet
- We hold no independent tests for MGF from any maker yet — unknown stays visible.
- Price sits within the normal range for MGF — no cheap-fake red flag.
How to verify this yourself
To verify before you buy: ask Core Peptides for the Janoshik COA for your batch number, then paste it into Verify — VialGrade confirms it's a real, unedited lab record.
Open the Verify toolMGF IGF-1 EC – 5MG
A peptide corresponding to a mechanically activated splice variant of insulin-like growth factor 1.
Observed price
Median $/mg
$14.5/mg
Range $/mg
$11.8/mg–$29.0/mg
This listing
#5 of 5
priciest/mg
Real / active mg
—
Compared by cost-per-mg against 5 sized listings of this compound. Real / active mg needs an independent purity test — none on record yet. Purity vs grade
- Availability
- Unavailable
- Checked
- 11 hours ago
Hands you to corepeptides.com — VialGrade doesn’t sell or take payment
Some vendor links may earn VialGrade a commission. It never changes a grade, a price, or where a listing ranks.
Core Peptides
Unclaimed page
2
Lab tests
99.8%
Median purity
43
Listings
Real listing aggregated from the vendor's public page. Buying happens on their site, never on VialGrade — we take no payment and hold no stock. These are sold for laboratory research use only, not for human consumption; the seller sets their own terms and age limits at checkout.
No independent test of Core Peptides' MGF yet
- We hold no independent tests for MGF from any maker yet — unknown stays visible.
- Price sits within the normal range for MGF — no cheap-fake red flag.
How to verify this yourself
To verify before you buy: ask Core Peptides for the Janoshik COA for your batch number, then paste it into Verify — VialGrade confirms it's a real, unedited lab record.
Open the Verify toolCompare by real cost
Every MGF listing, cheapest per mg first
Sticker prices hide the size, so listings are ranked by what a milligram actually costs — with independently tested purity where it exists. All 7 are here: the last 2 are listings whose vendor never published a strength we can read, so they have no per-mg figure to sort on.
| # | Vendor | Size | Price | Per mg | Tested purity | Real $/active mg | |
|---|---|---|---|---|---|---|---|
| 1 | Biotech Peptides | 5mg total | $59 | $11.8/mg | — | — | View |
| 2 | Purerawz | 10mg total | $136 | $13.6/mg | — | — | View |
| 3 | Umbrella Labs | 2mg total | $29 | $14.5/mg | — | — | View |
| 4 | Purerawz | 5mg total | $83 | $16.5/mg | — | — | View |
| 5 | Core PeptidesUnavailable | 5mg total | $145 | $29.0/mg | — | — | View |
| Listed, but not rankable — no published strength to price per mg | |||||||
| — | Purerawz | 1 vial | $33 | no size published | — | — | View |
| — | Behemoth LabzUnavailable | 1 vial | $143 | no size published | — | — | 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. A vendor shown as Unavailable or Low stock is priced here but not currently buyable.
Understand this compound
What is MGF?
Preclinical / animal onlya.k.a. Mechano Growth Factor, IGF-1EcA repair signal your muscles make right after hard or damaging exercise. It wakes up muscle stem cells to patch the damage, which is why it's studied for muscle repair.
Good to know: Native MGF is short-lived and acts locally, so injected synthetic versions may not replicate the natural mechanism; no human safety or efficacy trials exist.
How does MGF work?
The science
'IGF-1Ec,' a locally acting splice variant of IGF-1 produced by mechanically stressed or damaged muscle; its cleaved E-domain peptide activates muscle satellite (stem) cells as an autocrine/paracrine hypertrophy signal.
Mechanism of action from published research — how the molecule behaves, not a claim about any product or any human-use effect.
What is MGF researched for?
Studied for muscle repair and hypertrophy following mechanical damage, and in animal models for neuroprotection.
- 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; in vitro and rodent studies dominate, with essentially no human clinical trial data for the synthetic peptide.
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.
The lab evidence
What we could verify
Each row is a separate question with its own answer — one green row never vouches for the rest.
Identity
UnknownNo independent test on record for this listing.
Measured purity
UnknownNo independent purity measurement on record.
Batch traceability
UnknownNo batch on this listing matches an independent record.
Sterility
Not testedA purity certificate doesn't measure this — no such test on record.
Dose accuracy
UnknownNot something VialGrade measures — no test on record.
No third-party testing to cross-check
This listing doesn't advertise independent lab testing, and we don't hold an independent record for Core Peptides's MGF. Absence of a certificate isn't proof of anything — but there's nothing here to verify.
- Independent testing. No third-party COA advertised or on record.
Cross-checks the vendor’s testing claim against independent lab records. Read from the certificate, not re-measured by VialGrade. Purity is not a grade. Never a statement that a product is safe, sterile, or correctly dosed. What “grade” actually means
Price trend
—
Not available when last checked (Oct 2, 2026).
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.
General information, not legal or medical advice. VialGrade sells nothing and encourages no human use.
Same compound
See the full MGF market — all 7 vendors, price history & lab tests