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When GHK binds to copper (Cu) ions, it forms a biologically active copper-peptide complex commonly investigated for its role in cellular communication and physiological-maintenance mechanisms

J Biol Chem 2005

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340.38 g/mol (free tripeptide) Sequence: Glycyl-L-histidyl-L-lysine (Gly-His-Lys) Synonyms: Copper tripeptide-1, GHK copper, prezatide copper acetate, lamin Selected Published Studies The following peer-reviewed studies were conducted using animal models or in vitro cell-culture systems

Those with Wilson's disease or copper metabolism disorders should avoid GHK-CU entirely

N.et al (2013)