2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care 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 Copper Peptide Hair Growth Shampoo GHK Cu for Hair Loss Hairgenetix Copper Peptide Hair Research GHK Cu & AHK Cu Studies Hairgenetix