How to Inject Peptide Based Medications (Subcutaneous Method) Hone Health Do you know what this little blue injection is? It's called GHK Cu aka the Glow Peptide I've always believed in peptides for skincare, but honestly I never thought about 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 Rejuvenation and Youth with GHK Cu Peptide Treatment Dr. Ahmet zyigit A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend