§ CERTIFICATE OF ANALYSIS · THIRD-PARTY HPLC · FEB-2026● VERIFIED SUBMISSION · PUBLIC RECORD
◆ Batch ID · 265GHK✓ Verified · Pass
GHK-Cu × XL Peptides - Lab Test, February 2026
Tested · submitted by @Frank 👑 Legend
Test results
6 data points
Purity
99.58%
Endotoxins
Not tested
Stated qty
50 mg
Tested qty
59.44 mg
Qty match
119% of labeled · +19%
Batch ID
265GHK
Tested by
Janoshik LabsView profile →
◆ Quantity verification
50 mg→59.44 mg+19%
About this test
This independent HPLC lab test confirms GHK-Cu 50mg from XL Peptides at 99.584% purity. The analysis was conducted by Janoshik Labs on February 17, 2026.
GHK-Cu is a copper peptide complex researched for its potential role in skin health, wound healing, and collagen synthesis. A purity level of 99.584% indicates minimal contamination and high-grade synthesis.
The full certificate of analysis is available for download and verification at www.janoshik.com/verify/ using verification key UATG8HCTWGXC.
Certificate of analysis
Original document
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