GHK Cu Copper Peptide Benefits, Uses & Safety Intra V Copper peptide GHK Cu Wikipedia Not all Copper Peptides are created equal If you've tried copper peptides before and saw no change, here is why: Concentration and Stability. Most serums use a diluted solution that barely scratches Most skincare works on the surface. GHK Cu works deeper as a biological signal that helps guide the body's natural repair processes. Research has shown its potential to support collagen production, tissue remodeling,