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 GHK Cu Cooper Peptide: The Complete Skin & Repair Guide (2026) GHK Cu (Copper Peptide) is a naturally occurring peptide in the body that binds with copper to support cell repair and renewal. As we age, our levels decrease and thats where supplementation or Copper Peptide Hair Growth Treatment GHK cu, AHK cu, Licorice Root Extract, Ginseng Root Extact