How to Inject Peptide Based Medications (Subcutaneous Method) Hone Health Definitive Guide on Peptides for Skin and Hair Care Infusion Clinic ABQ Subcutaneous Injection Sites and Instructions for Safe Self Administration GHK Cu Peptide Injections: The Future Of Skin And Hair Care Amazon.com: GHK Cu Copper Peptide Serum Anti Aging Face Serum for Skin Firming, Wrinkle Reduction, Hydration & Collagen Boosting, 30ml(1 fl oz) : Beauty & Personal Care Ever heard of GHK Cu peptide? It's a naturally occurring copper peptide that helps repair tissue, stimulate collagen, and support skin healing. When used in injectable form, it works at a deeper level