GHK Cu Peptide: What It Does for Body Composition and Metabolic Health GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Ever heard of GHK Cu peptide? It's a naturally occurring copper peptide that helps repair tissue, stimulate collagen, and support skin healing. When used in injectable form, it works at a deeper level GHK Cu Injectable Team Wellcore The tripeptide GHKCu complex ameliorates lipopolysaccharideinduced acute lung injury in mice Oncotarget