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 50mg 5 Vials Us Chem Labs Thermodynamically stable ionic liquid microemulsions pioneer pathways for topical delivery and peptide application ScienceDirect GHK Cu Scalp Solution Empower Pharmacy 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