GHK-Cu 99.8% Purity — Reta PeptideCertificate of Analysis · Independent third-party lab result
LabG tested this GHK-Cu at 99.8% purity via HPLC and mass quantification. However, the tested quantity was significantly lower than labeled (37mg vs 50mg, a 26% deviation), and no endotoxin test was performed. The test is older (6-12 months).
- no endotoxin test
- stale (6-12 months)
- quantity deviation (-26%)
- Test date
- 2025-10-07
- Testing lab
- LabG
- Batch / lot
- (no batch ID)
- Quantity
- 37mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 4.7
- Label dose
- 50mg
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 2025-10-07 by LabG via HPLC + mass quantification + endotoxins. This test is newer than 14% 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
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