Best sources ranked · 2026

Best Mazdutide Sources

5 US vendors carry Mazdutide. Ordered below by the lab-rule score of each vendor’s certificate for Mazdutide, then by the vendor’s published score; prices are per milligram. An investigational dual agonist of the GLP-1 and glucagon receptors. Sold for laboratory research use only.

Vendors
5

Vendors

With COAs
2

With COAs

Best $/mg
$0.95

Best $/mg

GLP-1 note: compounded/research Mazdutide is not the FDA-approved branded product. Dosing errors with research-grade GLP-1s have caused hospitalizations. Research use only.

Every Mazdutide 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.

8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99.48certificate

Vendor score 7.37/10Strong

Price per mg
$15.80
Best price
$79.00 / 5mg
4.5/103 base, +0 Analytical Formulations tier C, +1.5 key, 0 purity 99.6certificate

Vendor score 4.54/10Weak

Price per mg
$1.49
Best price
$149.00 / 100mg
0.0/10no certificatecertificate

Vendor score 5.95/10Fair

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

Vendor score 2.75/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$0.95
Best price
$94.81 / 100mg
0.0/10no certificatecertificate

Vendor score 2.13/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
—
Best price
—

“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 Mazdutide

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

Top partner pick

NextGen Peps0.0/10 certificate · 10% off

The highest-placed affiliate partner in the table above for Mazdutide (certificate 0.0/10, vendor score 5.95/10), and also the partner with the largest reader code on it (code PSR10).

Shop NextGen Peps → (opens in new tab)
NextGen Peps discount code →

Mazdutide: Frequently Asked Questions

Who has the best Mazdutide?

In our 2026 audit, Bluum Peptides is listed first for Mazdutide: its certificate for Mazdutide scores 8.5/10 on our lab rule, and its published vendor score is 7.37/10. The full ordered table is on this page.

What is the cheapest Mazdutide per mg?

The lowest recorded price per milligram for Mazdutide 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 Mazdutide 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 Mazdutide; 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.

Also available at these peptide pages

Related peptides

Age verification

Are you 18 or older?

Peptide Source Review covers research peptides: substances sold for laboratory and research purposes, not for human consumption. By continuing, you confirm that you are at least 18 years old and that nothing on this site is medical or legal advice.

I am not 18, leave

We use a one-time browser memory (localStorage) so you don’t see this again on this device.