Let's talk peptides next up: GHK Cu GHK Cu is a copper peptide known for its role in skin health, healing, and overall rejuvenation. Naturally found in the body, it helps support Let's talk about GHKU CU GHK Cu: The Regenerative Glow Peptide GHK Cu (Copper Peptide) is a naturally occurring peptide in your body that plays a powerful role in cellular repair, skin GHK Cu Copper Peptides Comprehensive Cream for Skin Tag & Spot Removal, GHK Cu Skin Treatment Cream for Wrinkles & Blemishes, Repair Damaged Skin, Natural Moisturiser for All Skin Types, 50g : Amazon.co.uk: In Vitro and in Vivo Studies of pH Sensitive GHK Cu Incorporated Polyaspartic and Polyacrylic Acid Superabsorbent Polymer ACS Omega GHK Cu Peptide Therapy Zen Medicine