GHK Cu as a multifunctional copper peptide: synthesis routes, process engineering and emerging applications Systems Microbiology and Biomanufacturing Springer Nature Link CopperInduced Supramolecular Peptide Assemblies for MultiPathway Cell Death and Tumor Inhibition Zhang 2024 Angewandte Chemie International Edition Wiley Online Library GHK Cu: The Peptide That Supports Healthy Aging GHK Cu (copper peptide) is naturally occurring in the body and plays a role in supporting skin health, collagen production, and tissue repair. As GHK Cu Peptide Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect