GHK Cu Copper Peptide Face Cream Anti Wrinkle, Anti Aging Repair & Firming PeptideLabz Peptide Labz Can GHK Cu Be Taken Orally? Oral GHK Cu Bioavailability, Tablets & Copper Peptide Safety Neurogan Health 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 Peptide Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy GHK CU VIBRANCY MICRONEEDLING KIT LUX LAB Copper Peptide Regenerating Serum for Glowing Skin and Hair