Figure 3 from GHK Copper Peptide in Skin Remodeling and Anti Aging ! GHK Cu in Skin Remodeling Semantic Scholar The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds, WHAT ARE THE NEGATIVE SIDE EFFECTS OF PEPTIDE THERAPY IN CHARLESTON, SC? CHARLESTON HEALTHSPAN INSTITUTE Copper uglies = temporary. When you start GHK Cu, you can get a spike in free copper breakouts, texture, irritation. It's not the peptide failing. It's your body adjusting. Happens fast