Pptido de cobre GHK GHK Cu Tripptido 1 7 days on GHK Cu. Here's my honest update. I'm not going to hype this up because the real results don't even start until week 46. But something is already happening. GHK Cu as a multifunctional copper peptide: synthesis routes, process engineering and emerging applications Systems Microbiology and Biomanufacturing Springer Nature Link Buy AHK Cu Bottom Price CAS 682809 81 0 Cosmetic Copper Peptide ghk cu Pharmaceutical Grade from Runlian peptide supplier ECHEMI