GHK-Cu 100.0% Purity — Zen 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 99.95% pure via HPLC and mass quantification, with the tested quantity showing a 3.4% deviation above the label. The test is recent (3-6 months old), but the endotoxin status is unknown. Customers can verify this report on LabE's public URL.
- no endotoxin test
- no batch ID
- Test date
- 2025-11-18
- Testing lab
- LabE
- Batch / lot
- (no batch ID)
- Quantity
- 51.7mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 8.0
- Label dose
- 50mg
How this result compares
This GHK-Cu certificate's tested purity of 99.95% ranks higher than 91% of the 2433 GHK-Cu certificates with a purity result we have catalogued (median 99.82%).
Tested 2025-11-18 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 20% of our catalogued GHK-Cu certificates.
Zen Peptides has 32 certificates in our corpus, including 5 for GHK-Cu at a median tested purity of 99.95%.
Test report image
Finnrick
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Verify on the upstream labSaved source document
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