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ghk cu anti inflammatory effects GHK-Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes Size:Hospira Pfizer® – Bacteriostatic Water | 30 mL (Single Vial) ETS Cools Extreme Temperatures $10-$20

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These are the same kinds of reactions seen across topical actives generally and are not specific to AHK-Cu — they reflect applying a concentrated preparation to skin rather than anything unique to the peptide