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 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 Male Hair Restoration Before & After with PRF and GHK Cu