GHK Cu Youthful Skin, Healthy Cells, Vibrant You. GHK Cu is a copper peptide used in regenerative medicine to support collagen production, tissue repair, and cellular renewal throughout the body. It's for individuals looking to improve skin firmness, brightness, and visible GHK Cu is one of the most powerful regenerative peptides for skin, hair, and overall tissue health. GHK Cu supports collagen production, healing, and visible rejuvenation from within. It's commonly used to improve skin Peptide Therapy for Aesthetics The Villages Infinity Medical Institute Intensive Anti Aging Serum with Copper Peptide(GHK Cu) and Hyaluronic Acid