All peptides · Cortagen · COAs
Cortagen COA & lab test results
4 certificates of analysis published by 4 vendors, newest first.
2with readable numbers
99.75%median purity
112%median measured vs label
3testing labs
Labs: BioRegen, Freedom Diagnostics, Janoshik.
| Vendor | Lab | Date | Label | Measured | Purity | |
|---|---|---|---|---|---|---|
| Orbitrex Peptides | Freedom Diagnostics | 2026-08-04 | 20 mg | 21.92 mg (110%) | 99.48% | View |
| Amino Usa | BioRegen | 2026-07-07 | 20 mg | 22.3 mg (112%) | 99.75% | View |
| Eros Peptides | Janoshik | – | 20 mg | – | – | View (image) |
| Peptides 4 Research | – | – | 20 mg | – | – | View (image) |
A vendor's COA shows one tested sample, not every batch. Numbers are filled in only where the document is readable text; image-only COAs are linked without numbers. Vendors banned for fake reports are excluded. Compare Cortagen prices and lab-verified vendors.