A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend 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 Uses and Benefits #ghk GHK Cu is a naturally occurring peptide in human plasma that declines with age. When used in injections (usually subcutaneous), it can offer various benefits: Skin Rejuvenation and Anti Aging: Clean + Kind PDRN GHK Cu Serum with GHK Cu Peptides & PDRN for Improved Elasticity & Visible Firmness TikTok Shop GHK CU Cosmetic for Healthy Skin Aging and Wrinkle Support Pure Prescriptions