Neurogan Health, GHK Cu Copper Peptide, Hair & Scalp Serum GHK Cu Peptide for Hair Growth: Science, Benefits, and How It Works Micro needling GHK Cu to regrown my hair. Im going to stab small needles coated in liquid GHK cu, into my head twice a week. Fallow along to see if my hair will grown back. #ghkcu #microneedling Ingredients Hairgenetix GHK Cu, AHK Cu & PDRN Peptides Scientific Research Behind Hairgenetix Copper Peptides, Microneedling & PDRN