Does it work? Maneup GHK Cu hair growth serum : r tressless Copper Peptide 10% GHK CU, 5% AHK CU peptides Hair Growth Treatment Serum 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 Copper Peptide Hair Growth Serum for Hair Loss & Thinning Hair Feline Skinscience