Definitive Guide on Peptides for Skin and Hair Care Infusion Clinic ABQ GHK Cu is a peptide that helps improve skin by boosting collagen and healing damage. It can be used as a cream (topical) or an injection. The cream is great for wrinkles, scars, and hydration, but it 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 Rejuvenation and Youth with GHK Cu Peptide Treatment Dr. Ahmet zyigit GHK Cu Injections in Napa & Sonoma Copper Peptide (GHK Cu): Clinical Uses, Stability & Compounding Tips