Polyoxyethylene stearate is widely used as an emulsifier and surfactant in various industries. In the cosmetics and personal care sector, it is commonly found in creams, lotions, and shampoos, where it helps to stabilize mixtures of oil and water, ensuring a smooth and consistent texture. It also enhances the spreadability and absorption of these products on the skin or hair.

In the pharmaceutical industry, it is utilized in the formulation of ointments, creams, and topical medications to improve their consistency and delivery of active ingredients. Additionally, it serves as a solubilizing agent for poorly soluble drugs, enhancing their bioavailability.

In the food industry, it acts as an emulsifier in products like ice cream, baked goods, and processed foods, improving texture and preventing separation of ingredients. Its versatility and effectiveness make it a valuable component in a wide range of applications.