This independent HPLC lab test confirms GHK-Cu 100mg from RC Peptides at 99.004% purity. The analysis was conducted by Janoshik Labs on May 6, 2026.
GHK-Cu is a copper-peptide complex researched for its role in skin health, collagen synthesis, and tissue repair. A purity level of 99.004% indicates high-grade synthesis and minimal contamination.
The full certificate of analysis is available for download on this page.
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