AI summary Trust: medium Third-party lab

LabG tested this GHK-Cu at 99.7% purity via HPLC and mass quantification. However, the tested quantity was significantly lower than labeled, showing a -27.5% deviation. Endotoxin status is unknown, and no batch ID was provided. The test is recent (under 3 months), and customers can cross-check on the lab's public verification URL.

Watch out for
  • significant quantity deviation
  • no endotoxin test
  • no batch ID
Test date
2026-03-21
Purity
99.70% 99.70%
Batch / lot
(no batch ID)
Lab
LabG
Quantity
label 100mg tested 72.5mg
Qty vs label
-27.5%
Endotoxins
—
Test score
4.4
Manufacturer
Zlz Peptide
View vendor dossier
Certificate

Test report image

Certificate scan
Certificate scan as published.
Source

Finnrick

✓ Artifact captured

We have the certificate image (SHA-256 hash captured) — you can verify it loads from the upstream lab and matches the artifact below.

Verify on upstream
Method
HPLC + mass quantification + endotoxins
Test type
finnrick_composite
Dose
100mg
Container
No Label / Silver Crimp / Violet Cap
Catalogued
2026-04-16
Artifact hash
77f55183f43bb933…
This COA is part of TitrateLab's community-trust corpus. See more from Zlz Peptide or learn how trust scores are computed on the methodology page.