This independent HPLC lab test confirms GHK-Cu 50mg from Peptira at 99.83% purity. The analysis was conducted by Freedom Diagnostics on January 11, 2026.
GHK-Cu is a copper peptide researched for its potential effects on skin regeneration, collagen synthesis, and wound healing. A purity level of 99.83% indicates minimal contamination and high-grade synthesis. The sample presented as a blue lyophilized powder.
Endotoxin testing confirms <0.85 EU/mL across both replicates, meeting quality standards. The full certificate of analysis (COA #2601080166) is available for download on this page.

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