Used as a surfactant and emulsifying agent in cosmetic and personal care formulations, particularly in shampoos, body washes, and facial cleansers. It helps reduce surface tension, allowing for better spreading and foaming properties. Also functions as a solubilizer for oils and fragrances in aqueous systems. Its mild nature makes it suitable for sensitive skin products. Commonly found in sulfate-based cleansers where it contributes to viscosity control and product stability.