Introduction GHK Cu is a copper peptide complex formed from the tripeptide glycyl L histidyl L lysine bound to copper. This compound has garnered significant attention in both laboratory and formulation research due to its critical role Carcinoma associated fibroblast derived lysyl oxidase rich extracellular vesicles mediate collagen crosslinking and promote epithelial mesenchymal transition via p FAK p paxillin YAP signaling International Journal of Oral Science The challenge of determining lysyl oxidase activity: Old methods and novel approaches ScienceDirect GHK Cu G Lab Peptides Protein Lysine 6 Oxidase an overview ScienceDirect Topics