Used primarily as a non-ionic surfactant in cosmetic and pharmaceutical formulations. It functions as an emulsifier and solubilizer, helping to mix oil and water-based ingredients in lotions, creams, and serums. Its structure allows for good compatibility with a wide range of active ingredients, enhancing product stability and texture. Also employed in transdermal delivery systems to improve skin penetration of drugs. Commonly found in low-irritancy personal care products due to its mild nature and ability to reduce surface tension.