Erucic acid is primarily used in the production of erucamide, a slip agent and lubricant in plastic films, particularly polyethylene and polypropylene. It helps reduce friction and improves the handling and processing of these materials. Additionally, it is employed in the manufacture of surfactants and emulsifiers, which are essential in personal care products like shampoos and conditioners for their conditioning and smoothing properties. In industrial applications, it serves as a precursor for high-performance lubricants and coatings, enhancing durability and resistance to wear. Erucic acid is also used in the synthesis of behenyl alcohol, a key ingredient in cosmetics and pharmaceuticals for its moisturizing and stabilizing effects.