Same GHK Cu. Better way. Same GHK Cu copper peptide complex. Completely different experience. If you've been eyeing the pen, put it down. We made something better, and your skin barrier will thank you WO2019167070A1 Topical copper tripeptide composition and process of preparation. Google Patents Revitalize Your Skin: The Benefits of Copper Peptide for Youthful Glow DIY GHK Cu Serum at Home Anti Aging Hack That Actually Works! YouTube