GHK-Cu 99.9% Purity — Zlz PeptideCertificate of Analysis · Independent third-party lab result
LabE tested this GHK-Cu batch (2026-09-03) at 99.9% purity via HPLC. The tested quantity was 121mg, a significant deviation of +21% from the 100mg label. Endotoxin status is unknown. The test is recent (under 3 months) and customers can cross-check on the lab's public verification URL.
- no endotoxin test
- quantity deviation (+21%)
- Test date
- 2026-04-23
- Testing lab
- LabE
- Batch / lot
- 2026-09-03
- Quantity
- 121mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 7.0
- Label dose
- 100mg
How this result compares
This GHK-Cu certificate's tested purity of 99.90% ranks higher than 73% of the 2433 GHK-Cu certificates with a purity result we have catalogued (median 99.82%).
Tested 2026-04-23 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 67% 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
sha256:3758e14a72ed3704…
— immutable copy held by TitrateLab