BPC 157 vs TB 500 vs GHK Cu Inside the GLOW Protocol Revolution Health & Wellness GHK Cu might be trending, but it's not new. Before you inject yourself with this viral peptide, consider this. This copper peptide has been studied for years in skin repair and collagen signalling, Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms GHK Cu Peptide Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy Some people notice their skin looks worse before it improves with GHK Cu. This temporary phase is often called the copper uglies., #skincare, #ghkcu, #skinhealth, #longevity, #peptides