PPG-11 Stearyl Ether is a nonionic surfactant and emollient derived from stearyl alcohol and polypropylene glycol. It is used in personal care formulations for its conditioning, emulsifying, and solubilizing properties. It provides a smooth, soft after-feel on skin and hair, improving spreadability and texture in creams, lotions, conditioners, and cleansers. Its multifunctionality makes it suitable for both skin care and hair care products.