2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care Copper Peptide (Copper Tripeptide 1 GHK Cu) & Hair Growth All You Need To Know Bearded Chokra GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health Peptide Therapy for Hair Growth: Does It Really Work? IK Clinics 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