GHK-Cu × Good Science - Lab Test, May 2026
Test results
About this test
This independent HPLC lab test confirms GHK-Cu 100mg from Good Science at 99.80% purity. The analysis was conducted by Vanguard Laboratory on May 27, 2026. The tested quantity of 100.63mg exceeds the stated 100mg 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. Endotoxin testing passed at <5.00 EU/mg, confirming safety standards.
The full certificate of analysis is available for download on this page.
Certificate of analysis
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