GHK-Cu 99.8% Purity — Reta PeptideCertificate of Analysis · Independent third-party lab result
LabG tested this GHK-Cu batch (Jan 3, 2026) at 99.8% purity via HPLC and mass quantification. Quantity was slightly over label at 101.5mg (1.5% deviation), and the test is recent (under 3 months). Endotoxin status is not applicable for this product. Customers can cross-check on the lab's public verification URL.
- Test date
- 2026-02-20
- Testing lab
- LabG
- Batch / lot
- Jan 3, 2026
- Quantity
- 101.5mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 9.8
- Label dose
- 100mg
How this result compares
This GHK-Cu certificate's tested purity of 99.80% ranks higher than 45% of the 2433 GHK-Cu certificates with a purity result we have catalogued (median 99.82%).
Tested 2026-02-20 by LabG via HPLC + mass quantification + endotoxins. This test is newer than 48% of our catalogued GHK-Cu certificates.
Reta Peptide has 249 certificates in our corpus, including 27 for GHK-Cu at a median tested purity of 99.90%.
Test report image
Finnrick
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