GHK-Cu 99.8% Purity — Hk PeptidesCertificate of Analysis · Independent third-party lab result
This COA was tested by an independent third-party lab, LabE. The GHK-Cu was found to be 99.79% pure via HPLC and mass quantification. However, the tested quantity of 56.9mg significantly deviates from the 50mg label, showing a 13.8% surplus. Endotoxins were below LOQ, but the test is older (6-12 months).
- quantity deviation (13.8%)
- older (6-12 months)
- no batch ID
- Test date
- 2025-08-04
- Testing lab
- LabE
- Batch / lot
- (no batch ID)
- Quantity
- 56.9mg
- Endotoxins
- below LOQ
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 5.5
- Label dose
- 50mg
How this result compares
This GHK-Cu certificate's tested purity of 99.79% ranks higher than 43% of the 2433 GHK-Cu certificates with a purity result we have catalogued (median 99.82%).
Tested 2025-08-04 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 8% of our catalogued GHK-Cu certificates.
Hk Peptides has 487 certificates in our corpus, including 48 for GHK-Cu at a median tested purity of 99.90%.
Test report image
Finnrick
Artifact capturedWe have the certificate image (SHA-256 hash captured) — you can verify it loads from the upstream lab and matches the artifact shown here.
Verify on the upstream labSaved source document
sha256:384c8f9dce472a1c…
— immutable copy held by TitrateLab