GHK Copper Peptide GHK Cu Tripeptide 1 GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true?, Copper peptide, known as GHK Cu, has a growing body of peer Peptide Therapy for Inflammation: A New Solution What are the benefits, recommended regimen, and safety considerations of topical GHKCu (copper peptide) for skin repair and rejuvenation in healthy adults?