5 independent third-party assays of Cagrilintide, covering 5 vendors.
Measured purity across those assays runs from 99.3% to 100.0%, median 99.7%. The spread is the point: it is variation between lots and between vendors, not a single number that describes the compound.
Assay dates span 2024-05-04 to 2025-11-19.
Manufacturer recorded on the certificates: Pink Pony Peptides, HP RESEARCH, Peptide Crafters.
Cagrilintide carries an evidence grade of B on this site (Phase III / NDA Filed). Cagrilintide is a long-acting synthetic analog of human amylin, a peptide hormone co-secreted with insulin by pancreatic beta cells. It is being developed by Novo Nordisk both as a standalone agent and in fixed-dose combination with…
A certificate of analysis describes the lot that was submitted and nothing else. It is not a guarantee about a later batch, and purity is not identity — a sample can assay clean and still be the wrong compound, or the right compound at the wrong concentration. Vendors with no assay row below have not been tested here, which is not the same as having failed.
| Vendor | Assays | Median measured purity | Most recent |
|---|---|---|---|
| Pink Pony Peptides | 1 | 100.0% | 2025-09-08 |
| HAPPYPEPTIDES.COM | 1 | 99.7% | 2025-02-06 |
| MOB Peptides | 1 | 99.7% | 2024-05-04 |
| Peptide Crafters | 1 | 99.7% | 2025-01-07 |
| Reta-Peptide | 1 | 99.3% | 2025-11-19 |
Compound profile: Cagrilintide — evidence, mechanism and safety.
Vendors assayed: Pink Pony Peptides, HAPPYPEPTIDES.COM, MOB Peptides, Peptide Crafters, Reta-Peptide.