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It is often categorized as a multi-component peptide blend, developed to support investigations into cellular communication, molecular pathways, and GHK-Cu Peptide Research Overview, Mechanism, Applications & Safety Information April 11, 2026 Introduction GHK-Cu (Glycyl-L-Histidyl-L-Lysine Copper) is a naturally occurring copper-binding tripeptide that has attracted significant attention in biochemical and dermatological research