Melanotan II COA and purity data: 3 third-party test results
Across 3 third-party test results for Melanotan II, issued by independent laboratories between Feb 20, 2026 and Sep 15, 2026, documented HPLC purity ranged from 99.36% to 99.93%, with a mean of 99.70% and a median of 99.81%. The issuing laboratories were Accurate Test Labs and Freedom Diagnostics. Every certificate is published in full and linked below.
Every Melanotan II result on one scale
Every Melanotan II COA, newest first
| Report date | HPLC purity | Size | Laboratory | Identity (MS) | Certificate |
|---|---|---|---|---|---|
| Sep 15, 2026 | 99.36% | 10mg | Accurate Test Labs | Confirmed | Certificate (PDF) |
| May 14, 2026 | 99.81% | 10mg | Freedom Diagnostics | Confirmed | Certificate (PDF) |
| Feb 20, 2026 | 99.93% | 10mg | Freedom Diagnostics | Confirmed | Certificate (PDF) |
Purity is the main-peak area percentage by high-performance liquid chromatography as reported by the laboratory. Identity was confirmed by mass spectrometry on 3 of these certificates. Figures are computed from the public archive each time the site is built, and nothing is left out: low results stay in the table. How to read a COA.
More on Melanotan II
- Melanotan II in the catalogSizes, price and the current certificate
- Melanotan II research monographStructure, mechanisms studied and molecular data
- Verify a batchMatch a vial label to its certificate
- All lab resultsThe aggregate dataset across every compound
Where can I see the COA for Melanotan II?
Every Melanotan II certificate Eon Peptides holds is published on this page, 3 of them with a numeric HPLC result, each linking to the laboratory's own PDF. There is no login and no request form. The batch code on a vial label resolves to its certificate on the verify page.
Is Melanotan II third-party tested?
Yes. Testing is carried out by Accurate Test Labs and Freedom Diagnostics, not by Eon Peptides, and the issuing laboratory is printed on every certificate. Across 3 published results the documented HPLC purity runs 99.36% to 99.93%.
What purity has Melanotan II tested at?
In 3 documented third-party HPLC results on file, Melanotan II tested between 99.36% and 99.93%, with a mean of 99.70%. Each result is a main-peak percentage reported by the laboratory named on that certificate.
Who tested Melanotan II?
Accurate Test Labs and Freedom Diagnostics. The laboratory is printed on each certificate; Eon Peptides does not test its own product.
How do I match a vial of Melanotan II to its certificate?
Enter the batch code from the vial label on the verify page, or open the certificate for the matching report date in the table on this page.
For research use only. Not for human or veterinary use. These are analytical results for research materials and say nothing about use in people or animals.