GHK Cu: The Peptide That Transforms Skin and Tissue Health Calibrate Hydration Let's talk peptides next up: GHK Cu GHK Cu is a copper peptide known for its role in skin health, healing, and overall rejuvenation. Naturally found in the body, it helps support GHK Cu Copper Peptide Skincare Bundle RegenMed Direct : . Dr. Shintre breaks down what it is and why it works. ? A copper based peptide that naturally occurs in your