Copper Tripeptide (GHK Cu) for Advanced Skincare & Haircare Formulatio The science around peptides, light based wellness technology, & cellular support is becoming one of the biggest conversations in the wellness space right now. What are your thoughts on GHK Cu & 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 Copper peptides like GHK Cu work by sending signals to your skin to repair, regenerate, and produce collagen. It's not about instant results, it's about improving how your skin functions over time. Dr.