Ghk Cu Intra Nasal Spray 50 mg 0.34 oz. Westend Medical Supply GHK Copper Peptide GHK Cu Tripeptide 1 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 Do you get injection site reactions from your GHK CU? , 3 tips to make it better, Room temp , Use a different injection site , Inject the medication sloowwwly , All in all even with injection