2 weeks in on GHK Cu and the glow is REAL. Brighter complexion More even skin tone Less breakouts Softer fine lines Thicker, fuller hair This is just GHK Cu Copper Peptide Hair & Scalp Serum BPC TB Liquid Spray Research Peptide Pure Bio Labs Not all peptides are created equal and neither are our bodies. This is GHK Cu, a copper peptide (nasal spray) supplement from @NeuroGAN. I love experimenting, but I don't go in blind. My GHK CU Nasal Spray KLD Peptides