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Certificate of Analysis Each batch is tested by an independent third-party laboratory for: Peptide identity verification Purity analysis via HPLC (99%) Microbial contaminant screening Heavy metal analysis Residual solvent testing Key Ingredients Copper peptide investigated for its effects on dermal papilla cell proliferation and vascular endothelial growth factor (VEGF) expression in scalp and skin tissue

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What The Researchers Did The team at Seoul National University's Department of Dermatology took a two-pronged approach to test whether the copper peptide AHK-Cu affects hair growth: 1