You started using a GHK Cu peptide serum on your face and now , The things no one tells you., Yes, the injections can hurt like a bitch. , Heres the thing Ive found it works even better topically, What is a GHK CU Injection? Benefits and Uses Prime IV GHK Cu Cream Wells Pharmacy Network GHK CU 50mg 99%+ Purity Order Research Peptides Do You Have To Inject Ghk Cu Daily Buy GHK Cu 100mg (Copper Peptide) 99% Purity, USA Made