GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Thermodynamically stable ionic liquid microemulsions pioneer pathways for topical delivery and peptide application ScienceDirect GHK Cu: The Peptide That Transforms Skin and Tissue Health Calibrate Hydration Thermodynamically stable ionic liquid microemulsions pioneer pathways for topical delivery and peptide application ScienceDirect In Vitro and in Vivo Studies of pH Sensitive GHK Cu Incorporated Polyaspartic and Polyacrylic Acid Superabsorbent Polymer ACS Omega Have you used peptides? What are your thoughts? Let me know below Peptides are short chains of amino acids that play vital roles in cellular signaling and repair throughout the body.