Peptide Therapy for Hair Growth: Does It Really Work? IK Clinics Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack? GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health 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