GHK Cu Copper Peptide Skin & Healing Beverly Hills GHK CU Copper Peptide Update: 1 Month After Purge Amazon.com: Skin Perfection Copper Peptide Serum GHK CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp 1% Blue Liquid for Face, Neck, Body, Scalp Multi Use Serum Booster with Copper uglies = temporary., When you start GHK Cu, you can get a spike in free copper breakouts, texture, irritation., Its not the peptide failing. Its your body adjusting., Happens fast