GHK Cu: The Peptide That Transforms Skin and Tissue Health Calibrate Hydration Peptide Therapy for Inflammation: A New Solution Definitive Guide on Peptides for Skin and Hair Care Infusion Clinic ABQ 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