GHK Cu Peptide: What It Does for Body Composition and Metabolic Health GHK Cu Peptide Dosage How to Use Copper Peptides, Injections Neurogan Health GHK Cu Injectable Team Wellcore The Complete Peptide Guide: Reconstitution, Injection & Storage Extension Health When using peptides, the Sub Q tissue is the correct space for injection. Here is a simple guide on how to find this space. Remember to use sterile technique, please call or Subcutaneous Injection Sites and Instructions for Safe Self Administration