Copper Peptide Regenerating Serum for Glowing Skin and Hair Your body already knows this peptide it just makes less of it over time. GHK Cu is a naturally occurring copper peptide that supports tissue repair, improves skin quality, and helps reduce inflammation GHK Cu, the copper peptide, is a game changing injectable for radiant skin and so much more, , , Heres what it can do:, Boost collagen for smoother, firmer skin, Anti aging improves fine Copper Peptide Duo GHK Cu Anti Aging Serum & Moisturizer