All peptides · AHK-Cu · COAs
AHK-Cu COA & lab test results
15 certificates of analysis published by 14 vendors, newest first.
8with readable numbers
99.33%median purity
98%median measured vs label
6testing labs
Labs: Freedom Diagnostics, ILS Laboratories, Janoshik, Krause Analytical, Qorix Labs (Tianjin), Vanguard Laboratory.
| Vendor | Lab | Date | Label | Measured | Purity | |
|---|---|---|---|---|---|---|
| Licensed Peptides | Vanguard Laboratory | 2026-09-25 | 100 mg | – | – | View (image) |
| Licensed Peptides | Vanguard Laboratory | 2026-09-25 | 50 mg | – | – | View (image) |
| CertaPeptides | Janoshik | 2026-09-18 | 100 mg | 94.49 mg (94%) | 99.12% | View |
| Shanghai Leader Peptide BiotechnologyCOA concerns | Qorix Labs (Tianjin) | 2026-09-11 | 100 mg | – | 99.84% | View |
| Longevity Plan | ILS Laboratories | 2026-09-10 | 100 mg | 104.75 mg (105%) | 99.48% | View |
| NuLife Peptides | Freedom Diagnostics | 2026-08-15 | 100 mg | 97.99 mg (98%) | 98.09% | View |
| Liberty Peptides | – | 2026-08-04 | 50 mg | 52.93 mg (106%) | – | View |
| Core Peptides | Vanguard Laboratory | 2026-07-22 | 200 mg | – | 99.8% | View |
| Novabio ResearchCOA concerns | Vanguard Laboratory | 2026-07-22 | – | – | – | View (image) |
| Junli PeptideCOA concerns | Janoshik | 2026-04-29 | – | – | – | View (image) |
| Nuscience Peptides | Freedom Diagnostics | 2026-03-05 | 100 mg | – | – | View (image) |
| Regenerative Research | Krause Analytical | 2025-11-13 | 95 mg | 93.4 mg (98%) | 99.07% | View |
| Peptide Group Buy PGB | Janoshik | 2025-11-12 | – | – | 99.33% | View |
| Cocer Peptides | Janoshik | – | 100 mg | – | – | View (image) |
| Domestic Peps | Janoshik | – | 50 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 AHK-Cu prices and lab-verified vendors.