GHK Cu Face Serum 1200MG Copper Peptide Tablets 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 Helloskin GHK Cu 1% Triple Peptide Regenerative Serum QPJVC GHK Cu Copper Peptides Serum Health Rating & Analysis Oasis Multi Peptide + Copper Peptides 1% The Ordinary GHK Cu Blue Copper Peptide Serum