GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Helloskin GHK Cu 1% Triple Peptide Regenerative Serum Most people think skincare works at the surface level. But healthy skin function starts much deeper than a temporary glow. GHK Cu is a naturally occurring copper binding tripeptide that is already found GHK Cu as a multifunctional copper peptide: synthesis routes, process engineering and emerging applications Systems Microbiology and Biomanufacturing Springer Nature Link