GHK CU Topical Serum Kit 50ml Azur Skin GHK CU Before and After Pictures Topical GHK Cu Skin Results, Face Serum Reviews & Photo Results Neurogan Health GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B GHK Copper Peptide GHK Cu Tripeptide 1 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 Understanding Topical GHK Cu Peptide Benefits for Skin Rejuvenation in Maryland Preston's Pharmacy