GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect GHK Cu in solution (10ml 10ml) peptide with regenerating, restorative properties for skin and hair. GHK Cu Peptide: Mechanism, Anti Aging Research, and Regenerative Benefits 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 Copper Peptide Regeneration, Skin Renewal & Anti Age