GHK Cu (Copper Peptide) Provider Supervised Therapy IV Glow Bar Reducing Redness & Inflammation with GHK Cu Copper Peptides Vitali Skincare Copper peptides: What are they and what do they do for skin? GHK Cu, commonly known as copper peptides, are found naturally within the human body where they play a vital role in skin repair and maintenance. Copper peptides support optimal skin function by helping