Testing records
GHK (basic, copper-free) COAs
A COA shows the batch it names, not the lot shipped today. Vendors post certificates for specific batches; none of them shows which lot a vendor ships now, and a missing COA is shown as missing.
2 tracked offers for GHK (basic, copper-free) from 2 vendors: 2 have a public COA for the exact product and strength, 0 of them confirmed at the lab; 0 do not. The newest test date on file is Aug 21, 2026. Labs named: Chromate, Vanguard Laboratory.
By product and vendor
Each row is one vendor's offer for one exact product. It shows the report behind the testing state: for a lab-verified product the newest report the lab confirmed, otherwise the newest report on file. A lab link appears only where the lab confirmed the report. Every archived report is stored with its SHA-256 hash.
| Vendor | Testing state | Lab | Tested | Purity | Batch |
|---|---|---|---|---|---|
| GHK (basic, copper-free) 50 mg vial2 vendors | |||||
| Core Peptides | Product COA on file2 more reports on file | Vanguard Laboratory | Aug 21, 2026 | Not printed | C74130 |
| Polaris Peptides | Product COA on file | Chromate | Jan 8, 2026 | 99.859% | POL-GB100-2 |
What each testing state means
- Product COA on file (2): a public COA names this product and strength; it is not confirmed at the lab.
Picks need a COA for the exact product and strength tested within 12 months; see the methodology.