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 Felicite Did you know GHK Cu is one of the most studied peptides for skin health and tissue repair? This copper peptide has been explored for its potential to: Boost GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect GHK CU (a copper peptide) is naturally found in the human body and is studied for its involvement in skin integrity, tissue repair signaling, and cellular regeneration. Research commonly explores its relationship to: