GHK-Cu × XL Peptides — Lab Test, February 2026
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Test results
This is a purity and identity analysis. Sterility, endotoxins, and heavy metals were not screened — a high purity figure says nothing about those.
About this test
Independent HPLC purity analysis of GHK-Cu from xlpeptides.com, performed by Janoshik Labs on February 17, 2026. Reported purity: 99.584%. Net content: 59.44 mg against 50 mg labeled (119% of label). Tested content exceeds the labeled amount by 19%. Batch 265GHK. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
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