GHK Cu Topical Hair Foam LeadWest Medical Fraley What's the difference between GHK Cu (copper peptide) as a topical cream vs an injection? In this video I break down: What GHK Cu is and why it's used in anti aging skincare GHK Cu Peptide Before and After Results Topical or SubQ GHK Cu? Same molecule. Very different purposes. Topical you apply it on your skin. Think of it as feeding your skin from the outside. In a 12 week study of GHK Cu Copper Peptide Therapy for Hair & Skin in Mumbai GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B