Copper Peptides for Skin Things to Know VibrantSkin Bar Copper Peptides vs. Retinol: Which Anti Aging Powerhouse is Right for Pure & Cimple The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds, GHK Cu Peptide Therapy Brea, CA Orange County GHK Cu (Copper Peptide) LeadWest Medical Copper peptides explained what are the differences between copper peptides and GHK CU peptides? What they actually do for the skin in terms of repair and collagen, and what you can and cant mix