Copper Peptide 10% GHK CU, 5% AHK CU with Oligopeptide 1 Hair Treatment Serum eBay 2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care Copper Peptide GHK CU, AHK CU Peptide Hair Growth Treatment Serum Dual Peptides eBay 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