Multi Peptide + Copper Peptides 1% The Ordinary Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule 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 Copper Peptide Supplement, Promotes Skin Repair, Reduces Wrinkles eBay