GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B 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 Peptide Therapy for Inflammation: A New Solution What is the proper use of peptide GHK Cu (Glycyl Histidyl Lysine Copper) for wound healing or skin regeneration?