GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true? Copper peptide, known as GHK Cu, has Expression and Purification of Recombinant GHK Tripeptides Are Able to Protect against Acute Cardiotoxicity from Exposure to Waterborne Copper in Zebrafish GHK Cu (50mg) Your Peptide Brand GHK CU for Sale Tripeptide 1 3rd Party Tested US Made GHK Cu Peptides: Unlocking the Copper Peptide Revolution in Skin Care