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[DOI] [PubMed] [Google Scholar] 51.Zhang ZY, Lee SY

GHK-Cu is a naturally occurring copper peptide that modulates expression of over 4,000 human genes, including those involved in collagen synthesis, metalloproteinase regulation, and antioxidant defense

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Upon receipt, the vials should be stored in a cool, dry place, ideally at -20C for long-term preservation