Ceto-stearyl alcohol is a mixture of fatty alcohols, primarily cetyl and stearyl alcohol, derived from natural vegetable oils or synthetic sources. It appears as white to off-white waxy flakes or beads. Widely used in personal care and pharmaceutical formulations, it functions as an emollient, thickener, and stabilizer. It enhances texture, provides a smooth feel, and improves the viscosity of creams, lotions, and ointments.