Ceteareth 20 is a nonionic surfactant and emulsifier produced by the ethoxylation of cetearyl alcohol with 20 moles of ethylene oxide. It is a white, waxy solid in form. Ceteareth 20 is widely used in the cosmetics and personal care industry as an oil-in-water emulsifier, helping to create stable, smooth emulsions in creams, lotions, and conditioners. It also functions as a solubilizer and consistency agent, contributing to the texture and spreadability of finished formulations. Ceteareth 20 is commonly found in moisturizers, hair care products, and skin care preparations.