Not all copper peptide serums are created equal And this is where a lot of people get confused. You'll see copper peptides on the label and expect amazing results but the BEAUTY PEPTIDE DETAILS + TIPS + why this peptide is everywhere right now, GHK Cu (copper tripeptide) goes beyond surface level beautyits naturally found in the body but declines with age. Known Cellular Glow Copper Peptide GHK Cu Serum for Face Advanced GHK Cu Neck & Face Serum Premium Quality Neurogan Health