GHK-Cu is a naturally occurring copper-binding tripeptide composed of glycine, histidine, and lysine complexed with copper. Originally identified in human plasma, GHK-Cu has become widely studied in laboratory research involving cellular signaling, extracellular matrix biology, tissue remodeling, gene expression, and copper-dependent biological processes.

GHK-Cu research has explored its relationship with collagen-related processes and extracellular matrix activity. Researchers have investigated how its ability to bind copper may influence cellular migration, tissue signaling, and biochemical processes that depend on copper as an essential trace element.

Another significant area of GHK-Cu research involves gene expression, oxidative processes, and cellular response. Laboratory studies have examined the copper-peptide complex in experimental models involving cellular stress, inflammatory signaling, and age-associated changes in tissue biology.

GHK-Cu has a molecular weight of approximately 403.9 g/mol as the copper complex and can be synthetically produced for controlled research applications. It is typically supplied as a lyophilized research material for laboratory investigation involving copper-peptide biology, extracellular matrix signaling, and related cellular pathways.