Biossance Squalane + Copper Peptide Rapid Plumping Serum Copper Peptide (GHK Cu) 2% Recovery Serum HKH Copper Peptides Serum for Face 38 Caps Anti aging Facial Serum Capsules with Hyaluronic Acid 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an updateit's been 12 weeks since I started using GHK Most people think GHK Cu is just a beauty peptide. But look at this Same person. Same lighting. Real skin change. GHK Cu works by activating repair genes in the body helping with