Used as an emulsifier in pharmaceuticals, cosmetics, and food products to stabilize oil-in-water emulsions. Helps improve solubility of hydrophobic substances in aqueous solutions. Commonly found in topical creams and lotions for uniform dispersion of active ingredients. Also applied in cell culture and biochemical research to prevent protein aggregation and aid in membrane protein solubilization. Suitable for use in some food products as a stabilizing agent due to its low toxicity and biocompatibility.