Injectable Peptides for Anti Aging? A Dermatologist Explains GHK Cu GHK Cu (copper peptide) is a science backed anti aging compound that supports collagen production, skin regeneration, and overall skin health. Used in both topical serums and subcutaneous GHK Cu Face Serum 1200MG Lab Tested & High Potency Neurogan Health What are the potential adverse effects of using GHK Cu (Glycyl Histidyl Lysine Copper) topical peptides for wound healing? GHK Cu peptide is the ultimate tool of biohacking your skin. Injectable GHK Cu peptide works as a repair signal inside your skin. And when the skin functions better, the visible effects follow: Reduced KPV NAD+ GHK Cu Peptide Patch Medical Imaging and Therapeutics