Copper Peptides for Skin: What GHK Cu Does and How It Compares to Retinol All About GHK Cu, the Copper Peptide Reminding Your Skin How to Heal The Editor's Edit This is what the combination of microneedling, peptides and consistency can do These photos are results from scalp restoration using GHK CU from @neuroganhealth How does this treatment work? Microneedling is used GHK Cu Peptides: Unlocking the Copper Peptide Revolution in Skin Care