GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true?, Copper peptide, known as GHK Cu, has a growing body of peer Copper peptides keep coming up in every skincare conversation I'm in and I realized I'd been nodding along without actually understanding if they work or just sound impressive. I went to PDF) GHK, the Human Skin Remodeling Peptide, Induces Anti Cancer Expression of Numerous Caspase, Growth Regulatory, and DNA Repair Genes Rejuvenation and Youth with GHK Cu Peptide Treatment Dr. Ahmet zyigit