Copper Peptide Barrier Cream Yunasence GHK Cu with Ceramides YUNASENCE Dr Jonas Programs GHK Cu: The Peptide That Transforms Skin and Tissue Health Calibrate Hydration Many people are being told to inject peptides like BPC 157, GHK Cu, or TB500 right over the area of pain, thinking it will deliver the peptide directly into the injured tissue. Thats simply not true. GHK Cu Peptide Progress: Week 3 Results