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 Meet the ingredient your skin has been waiting for. GHK Cu, or Copper Tripeptide 1, is one of the most researched anti ageing actives in skincare. It firms. It renews. It supports collagen. And now Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 Copper Tripeptide 1 GHK Cu 1% Solution GHK Cu Face Serum 1200MG Lab Tested & High Potency Neurogan Health