Cellular Reset Epithalon + GHKCu in Chicago Longevity & Skin Regeneration Peptide Therapy at Better Med Spa Copper Peptide Hair Growth Conditioner GHK Cu for Hair Loss Hairgenetix I ran GHK Cu for 12 months so you dont have to (here are the results) GHK Cu Copper Peptide Regeneration, Skin Renewal & Anti Age 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an updateit's been 12 weeks since I started using GHK