§ CERTIFICATE OF ANALYSIS · THIRD-PARTY HPLC · JAN-2026● VERIFIED SUBMISSION · PUBLIC RECORD
◆ Batch ID · N/A✓ Verified · Pass
GHK-Cu × Penguin Peptides - Lab Test, January 2026
Tested · submitted by @Frank 👑 Legend
Test results
6 data points
Purity
99.59%
Endotoxins
Not tested
Stated qty
50 mg
Tested qty
46.57 mg
Qty match
93% of labeled · -7%
Batch ID
N/A
Tested by
Janoshik LabsView profile →
◆ Quantity verification
50 mg→46.57 mg-7%
About this test
This independent lab test confirms GHK-Cu 50mg from Penguin Peptides at 99.607% purity with an actual measured content of 46.57 mg. The analysis was conducted by Janoshik Labs on January 22, 2026. The lab noted the sample was tested twice.
GHK-Cu is a copper-binding tripeptide researched for its role in collagen synthesis, wound healing, and skin regeneration. A purity level of 99.607% indicates high-grade synthesis with minimal impurities.
The full certificate of analysis is available for download on this page.
Certificate of analysis
Original document
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