§ CERTIFICATE OF ANALYSIS · THIRD-PARTY HPLC · MAY-2026● VERIFIED SUBMISSION · PUBLIC RECORD
◆ Batch ID · 3548165✓ Verified · Pass
GHK-Cu × Good Science - Lab Test, May 2026
Tested · submitted by @Frank 👑 Legend
HPLC Purity
99.80%
✓ Excellent
Test results
6 data points
Purity
99.80%
Endotoxins
Not tested
Stated qty
50 mg
Tested qty
50.19 mg
Qty match
100% of labeled · +0%
Batch ID
3548165
Tested by
Vanguard LaboratoryView profile →
◆ Quantity verification
50 mg→50.19 mg+0%
About this test
This independent HPLC lab test confirms GHK-Cu 50mg from Good Science at 99.80% purity. The analysis was conducted by Vanguard Laboratory on May 27, 2026. The tested quantity of 50.19mg aligns closely with the stated 50mg label claim, indicating consistent formulation accuracy.
GHK-Cu (copper tripeptide) is a naturally occurring peptide researched for its role in collagen synthesis, wound healing, tissue repair, and skin health support. A purity level of 99.80% indicates high-grade synthesis with minimal contamination.
The full certificate of analysis is available for download on this page.
Certificate of analysis
Original document
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