Palmitoyl Pentapeptide-4

A matrikine peptide formed by lipidating the collagen I fragment KTTKS (Lys-Thr-Thr-Lys-Ser) with palmitic acid. Stimulates fibroblast synthesis of collagen I and III, fibronectin, and hyaluronic acid. Extensively studied in cosmetic dermatology research for reducing wrinkle depth and skin roughness. One of the most well-researched cosmetic peptides.