The biological signal for full body skin tightening. If you want to visibly improve skin density, elasticity, and firmness, you need the right biological messenger. Enter GHK Cu (Copper Peptide). This powerful molecule GHK Cu: The Peptide That Transforms Skin and Tissue Health Calibrate Hydration GHK Copper Peptide GHK Cu Tripeptide 1 Copper Peptide GHK Cu & Hyaluronic Acid Body Lotion Skin Firming 10 fl oz Before vs. after 3 months of GHK Cu peptide therapy smoother texture, more even tone, and skin that looks healthier overall. Small peptide, big difference