Polysorbate 80 is a common food additive and emulsifier used to help mix ingredients that usually don't blend well, like oil and water. It is derived from sorbitol and fatty acids, making it useful in various products, including ice cream, salad dressings, and sauces. In addition to food, Polysorbate 80 is also found in cosmetics and pharmaceuticals, where it helps improve texture and stability. It is generally recognized as safe by regulatory agencies, but some individuals may experience allergic reactions or sensitivities to it.