GHK Cu: The Copper Peptide That's Rewriting the Rules of Regeneration In peptide research, synergy matters. Some compounds may offer greater insight when studied together, and GHK Cu and AHK Cu are two peptides drawing attention for that reason. Different biological pathways Distinct GHK Cu as a multifunctional copper peptide: synthesis routes, process engineering and emerging applications Systems Microbiology and Biomanufacturing Springer Nature Link GHK Cu Engage Peptides