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 GHK Cu Peptide Side Effects Safety, Treatments Neurogan Health GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B The Science and Benefits of GHK Cu Peptide: Skincare, Hair Growth, and Beyond