PSA] Finally, a Dr. explains the mechanism behind the "copper uglies" : r SkincareAddiction GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B 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 What are the dosing regimens and potential side effects of GHK Cu (Glycyl Histidyl Lysine Copper) peptides in various conditions, including wound healing and neurodegenerative diseases?