Best sources ranked · 2026

Best PEG-MGF Sources

10 US vendors carry PEG-MGF. Ordered below by the lab-rule score of each vendor’s certificate for PEG-MGF, then by the vendor’s published score; prices are per milligram. PEGylated form of mechano growth factor, an IGF-1 splice variant. PEGylation attaches a polyethylene glycol chain to the peptide. Sold for laboratory research use only.

Vendors
10

Vendors

With COAs
3

With COAs

Best $/mg
$6.00

Best $/mg

Looking for the top picks? Best PEG-MGF vendors, ranked by PSR score →

Every PEG-MGF source, by certificate

Ordered by the lab-rule score of each vendor's certificate for this product (out of 10), then by the vendor's published score, then alphabetically. How the lab rule scores a certificate. For the market-wide picture, see our 2026 study of peptide vendor testing.

Affiliate links: we may earn a commission if you buy. It never changes a score or rank.

10.0/103 base, +2 MDx BioAnalytical Laboratory tier A+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +1 accredited, +0.5 purity 99.72certificate

Vendor score 7.24/10Strong

Price per mg
$18.99
Best price
$94.97 / 5mg
Shop BioLongevity Labs → (opens in new tab)
8.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 purity 99.84certificate

Vendor score 6.86/10Fair

Price per mg
$24.50
Best price
$48.99 / 2mg
8.0/103 base, +2 MZ Biolabs tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.45certificate

Vendor score 6.88/10Fair

Price per mg
$25.00
Best price
$49.99 / 2mg
2.0/10SteriGenix Analytical tier D: independence not established = 2.0 flatcertificate

Vendor score 4.80/10Weak

Price per mg
$26.00
Best price
$52.00 / 2mg
0.0/10no certificatecertificate

Vendor score 5.95/10Fair

NoneNo third-party COA was publicly available at audit time
Price per mg
$10.80
Best price
$54.00 / 5mg
Shop NextGen Peps → (opens in new tab)
0.0/10no certificatecertificate

Vendor score 5.39/10Weak

NoneNo third-party COA was publicly available at audit time
Price per mg
—
Best price
—
Shop Swiss Chems → (opens in new tab)
0.0/10no certificatecertificate

Vendor score 4.39/10Weak

NoneNo third-party COA was publicly available at audit time
Price per mg
$22.00
Best price
$44.00 / 2mg
0.0/10no certificatecertificate

Vendor score 3.21/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
—
Best price
—
0.0/10no certificatecertificate

Vendor score 2.13/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$6.00
Best price
$120.00 / 10 x 2mg pack
0.0/10no certificatecertificate

Vendor score 1.63/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$44.99
Best price
$89.99 / 2mg

“Shop” links may be affiliate links (rel="sponsored"); we may earn a commission. Affiliate status never affects any rating, rank, or gate. Disclosure.

Affiliate partners carrying PEG-MGF

Affiliate links: we may earn a commission if you buy. It never changes a score or rank.

Top partner pick

BioLongevity Labs10.0/10 certificate · 15% off

The highest-placed affiliate partner in the table above for PEG-MGF (certificate 10.0/10, vendor score 7.24/10), and also the partner with the largest reader code on it (code PSR).

Shop BioLongevity Labs → (opens in new tab)
BioLongevity Labs discount code →

PEG-MGF: Frequently Asked Questions

Who has the best PEG-MGF?

In our 2026 audit, BioLongevity Labs is listed first for PEG-MGF: its certificate for PEG-MGF scores 10.0/10 on our lab rule, and its published vendor score is 7.24/10. The full ordered table is on this page.

What is the cheapest PEG-MGF per mg?

The lowest recorded price per milligram for PEG-MGF in our audit is the "Best $/mg" figure at the top of this page, and every carrier's price per mg is in the table. Cheapest is not the same as best: the table is ordered by certificate and vendor score, not by price.

How do you rate PEG-MGF vendors?

Ordered by the lab-rule score of each vendor's certificate for this product (out of 10), then by the vendor's published score, then alphabetically. The certificate score is the same lab rule that builds each vendor's lab sub-score, applied to that vendor's certificate for PEG-MGF; the vendor score is the published overall score. Price per mg is shown but does not change the order. See our methodology for the lab rule.

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