Glow from within with GHK Cu Copper Peptide This powerhouse peptide supports collagen production, skin repair, and hair follicle health, helping improve skin firmness, radiance, and support fuller, healthier looking hair from the Peptide Injection Treatments Benefits & Uses Hubmed A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend 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