A GHK Cu face serum appears blue because the active ingredient, GHK Cu ( copper peptide), is naturally a blue colored powder, meaning its inherent color transfers to the serum when mixed in; this blue hue 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 Hair Foam MedClub by Dr Jenn A GHK Cu face serum appears blue because the active ingredient, GHK Cu ( copper peptide), is naturally a blue colored powder, meaning its inherent color transfers to the serum when mixed in; this blue hue