GHK Cu Copper 1% Tripeptide Serum with Hyaluronic Barbados Ubuy Amazon.com: Skin Perfection GHK Cu Copper Peptide Powder 99.7% Pure DIY Copper Peptides Serum for Face and Scalp Cosmetic Grade GHK Cu 1 Gram Creates Up to 100ml for Fuller Hair and GHK Cu vs AHK Cu: Which Copper Peptide Is More Effective? GHK cu is a copper peptide. It's great for skin, especially when you combine it with other things. My favorite is DMSO and derma rolling. My first experience with copper peptides was Procytes Copper Peptide GHK CU Serum, Raw Aloe , 4% Hyaluronic Acid Anti Wrinkle 1 fl oz eBay How to Use GHK Cu Repairing Serum SumaNurica