Glycol Distearate; Steareth-4 is a cosmetic ester and nonionic surfactant blend commonly used in personal care products. It functions as a pearlizing agent, emulsifier, and opacifying agent, giving creams and lotions a pearlescent appearance. It also provides skin conditioning and enhances the texture and spreadability of formulations. This blend is widely used in shampoos, body washes, and facial cleansers to improve aesthetics and sensory feel.