GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health Before vs. after 3 months of GHK Cu peptide therapy smoother texture, more even tone, and skin that looks healthier overall. Small peptide, big difference Injectable GHK Cu: Beginner's Guide to Copper Peptide lets talk peptides for a minute ive been seeing @drpeptideofatlanta since november and recently started the klow stack which includes peptides like bpc 157, ghk cu, and kpv to support skin