GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true? Copper peptide, known as GHK Cu, has 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 Blue Copper Peptide GHK CU Regenerate Toner 100ml Anti Aging Spray Glowing Skin eBay GHK Cu Copper Peptide Capsules Skin, Hair & Recovery Support TheaWell