Polysorbate 80 is a nonionic surfactant and emulsifier derived from polyethoxylated sorbitan and oleic acid. It is widely used in pharmaceuticals, food, and cosmetics for its ability to solubilize oils in water-based systems. Its NF and FCC grades indicate compliance with pharmaceutical and food standards, while Kosher certification ensures suitability for religious dietary needs. Known for excellent stability, it improves product consistency, shelf life, and formulation quality.