GHK Cu Copper Peptides: Topical vs Injectable GHK Cu 50mg 10mL Vial: Automatic Refills Celia Health GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B 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 Scalp Solution Empower Pharmacy Figure 2 from GHK Copper Peptide in Skin Remodeling and Anti Aging ! GHK Cu in Skin Remodeling Semantic Scholar