The Science and Benefits of GHK Cu Peptide: Skincare, Hair Growth, and Beyond GHK Cu Hair Growth Neurogan Health, GHK Cu Copper Peptide, Hair & Scalp Serum Private Label Ghk Cu Serum Copper Peptide Hair Growth Copper Peptide Serum for Hair Growth Peptide I posted about GHK CU about two weeks ago and had a ton of people ask me questions about it in terms of how it works, but also asking about my personal experience. I am not done treatment yet, but in