GHK Cu Lotion Copper Peptides for Skin: What GHK Cu Does and How It Compares to Retinol GHK Cu Peptides: Unlocking the Copper Peptide Revolution in Skin Care Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule I took a serious turn last year towards peptide derived skincare. It changed my skin in all the best ways I didn't even imagine. When I started GHK Cu (copper peptide) injections 3 Rejuvenation and Youth with GHK Cu Peptide Treatment Dr. Ahmet zyigit