Regenerative properties of the NL GHK Cu peptide and skin appearance Synthagen PL Rejuvenation and Youth with GHK Cu Peptide Treatment Dr. Ahmet zyigit I think everything I did for my scars worked synergistically and helped, but if I had to choose one product, it would be GHK Cu (aka copper peptides)., Now one year later I see the resultsand theyve GHK Cu Copper Peptide Regeneration, Skin Renewal & Anti Age Ghk cu gave me acne scars : r Biohackers