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 Proposed acidic degradation pathway of GHKCu in acidic solution. Download Scientific Diagram Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Jumbo Size Biossance 89030 95 5 GHK Cu Gly His Lys Cu Copper Tripeptide 1; Prezatide copper GHK Cu Peptide: What It Does for Body Composition and Metabolic Health