Expression and Purification of Recombinant GHK Tripeptides Are Able to Protect against Acute Cardiotoxicity from Exposure to Waterborne Copper in Zebrafish GHK Cu as a multifunctional copper peptide: synthesis routes, process engineering and emerging applications Systems Microbiology and Biomanufacturing Springer Nature Link Anybody experiment with GHK Cu peptide yet? Its supposed to help regulate your collagen production. GHK Cu Clinical Profile Copper Peptide Research Delta Peptides