COA #157314 matches Janoshik Labs's public record. So this test doesn't rest on our review alone — the lab confirms it too.
VY5ZHNF3YGIKThis is a purity and identity analysis. Sterility, endotoxins, and heavy metals were not screened — a high purity figure says nothing about those.
Independent HPLC purity analysis of GHK-Cu from Crystal Peptides EU, performed by Janoshik Labs on May 26, 2026. Reported purity: 99.682%. Net content: 94.44 mg against 100 mg labeled (94% of label). Batch CU1002026-02. Sample source: shop-provided. Certificate of analysis attached.
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