Span 40 is widely used as an emulsifier in the food industry, helping to stabilize mixtures of oil and water in products like baked goods, ice cream, and margarine. In pharmaceuticals, it serves as a key ingredient in the formulation of creams, ointments, and lotions, ensuring consistent texture and stability. Additionally, it is employed in cosmetic products such as moisturizers and makeup to improve blendability and shelf life. In industrial applications, Span 40 acts as a surfactant in lubricants and coatings, enhancing their performance and application properties. Its versatility makes it a valuable component across various sectors.