GHK Cu 50mg 5 Vials Us Chem Labs GHK Cu Injections NOW AVAILABLE AT DNJ Shipped directly to your home for self injection We're excited to now offer injectable GHK Cu (Copper Peptide) at DNJ Med Boutique, available through direct GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B GHK Cu Revival Clinic Still injecting in the same spot every time? Read this. Where you inject your peptides can actually affect absorption, comfort, and results. Quick guide: Abdomen: fastest absorption Upper arms