nonionic surfactant used to mix oil and water
Polysorbate 80, also known as Tween 80, is a nonionic surfactant and emulsifier commonly used in pharmaceuticals, cosmetics, and food products to help mix ingredients that typically don't blend well, such as oil and water. In the context of hair care, it is sometimes included in formulations to improve the distribution of active ingredients and enhance the texture of the product.