Palmitoyl Dipeptide-18 is a cosmetic ingredient known for its ability to promote the synthesis of matrix proteins, including collagen. It also increases the production of elastin, hyaluronic acid, glycosaminoglycans, and fibronectin. By enhancing the activity of matrix cells and promoting collagen synthesis, Palmitoyl Dipeptide-18 contributes to a more youthful and elastic appearance of the skin. This ingredient is characterized by its self-organizing properties in water, forming ribbon-like fibers that adhere to the skin when cosmetics containing it are applied, providing a smoothing effect. It is widely used in personal care products for its multifunctional benefits, including as a viscosity controlling agent.