GHK-Cu 99.6% Purity — Zlz PeptideCertificate of Analysis · Independent third-party lab result
LabE tested this GHK-Cu batch (03/12/2026) at 99.6% purity via HPLC and mass quantification. Quantity was slightly over-labeled by 2.1%, and the test is recent (under 3 months). However, the endotoxin status is unknown. Customers can cross-check on the lab's public verification URL.
- no endotoxin test
- Test date
- 2026-04-28
- Testing lab
- LabE
- Batch / lot
- 03/12/2026
- Quantity
- 102.1mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 9.3
- Label dose
- 100mg
How this result compares
This GHK-Cu certificate's tested purity of 99.60% ranks higher than 20% of the 2433 GHK-Cu certificates with a purity result we have catalogued (median 99.82%).
Tested 2026-04-28 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 69% of our catalogued GHK-Cu certificates.
Zlz Peptide has 274 certificates in our corpus, including 14 for GHK-Cu at a median tested purity of 99.91%.
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
sha256:4323d1e3b7885aec…
— immutable copy held by TitrateLab