GHK Cu as a multifunctional copper peptide: synthesis routes, process engineering and emerging applications Systems Microbiology and Biomanufacturing Springer Nature Link Copper Tripeptide (GHK Cu) for Advanced Skincare & Haircare Formulatio GHK Cu as a multifunctional copper peptide: synthesis routes, process engineering and emerging applications Systems Microbiology and Biomanufacturing Springer Nature Link Protective Functions of Alanyl L Histidine and Glycyl L Histidyl L Lysine Glycoconjugates and Copper in Concert Dimeric copper peptide incorporated hydrogel for promoting diabetic wound healing Nature Communications