Private Label Advanced GHK Cu Copper Peptide Face Cream Anti Age Improve Elasticity Blue GHK Copper Peptides Powder Moisturizer GHK Cu Organic Serum Copper Peptide for Anti Aging & Skin Repair 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 Face Cream Anti Wrinkle, Anti Aging Repair & Firming PeptideLabz Peptide Labz GHK Cu isn't just' a skin peptide. The gene expression data is why it keeps showing up in longevity reviews. Follow @lebaneselabs for daily peptide research.