GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B 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 Glow Peptide Protocol GHK Cu, BPC 157, TB 500 Neurogan Health Copper Peptides Before and After: Visible Skin Improvements Explained Hubmed GHK Cu, the copper peptide, is a game changing injectable for radiant skin and so much more Here's what it can do: Boost collagen for smoother, firmer skin Anti aging