GHK Cu Before and After: See Fine Lines and Wrinkles Fade Fast GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend 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 Reducing Redness & Inflammation with GHK Cu Copper Peptides Vitali Skincare