This independent HPLC lab test confirms GHK-Cu 50mg from Precisely Peptides at >99.80% purity. The analysis was conducted by Vanguard Laboratory on April 23, 2026.
GHK-Cu is a copper peptide complex researched for its role in collagen synthesis, skin rejuvenation, wound healing, and cellular repair. A purity level exceeding 99.80% indicates exceptional quality and minimal contamination.
The full certificate of analysis is available for download on this page.
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