GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack? 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 The GHK Cu copper peptide is one of the most underrated skin repair ingredients out there., Naturally found in the body, it plays a key role in collagen and elastin production, skin healing, and