GHKCu Skin Repair Des Moines Peptide Therapy Iowa IV A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend If you're using GHK Cu and it stings a little (which is common) this one's for you In this reel I'm sharing the small tweaks that have helped me make peptide injections ghk cu HURTS, how to prevent that??? : r PeptideForum 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