Tween 80 (Polysorbate 80) is a nonionic surfactant and emulsifier widely used in various industries, including pharmaceuticals, food, cosmetics, and biotechnology. It is derived from sorbitol and oleic acid, making it a hydrophilic compound that enhances solubility and stability in aqueous solutions. With excellent emulsifying and dispersing properties, Tween 80 plays a crucial role in preventing phase separation in emulsions and suspensions. Its ability to reduce surface tension allows for better mixing of oil and water-based substances, making it an essential ingredient in many formulations.

In the pharmaceutical industry, Tween 80 is commonly used in injectable drugs, vaccines, and eye drops to improve the solubility and stability of active ingredients. It helps in the delivery of hydrophobic drugs by forming micelles, ensuring proper drug dispersion and bioavailability. Additionally, it is used in biotechnology applications, such as cell culture media, to facilitate nutrient absorption and promote cell growth. Due to its biocompatibility, Tween 80 is also a key component in intravenous formulations, ensuring that active compounds remain evenly distributed within the solution.

In the food and cosmetic industries, Tween 80 serves as an effective emulsifier in salad dressings, ice creams, and sauces, providing a smooth texture and preventing ingredient separation. In cosmetics, it is used in lotions, creams, and shampoos to stabilize formulations and enhance the spreadability of products. Its mild nature and non-toxic profile make it suitable for use in personal care items, ensuring product consistency and ease of application. With its versatile properties and wide range of applications, Tween 80 remains an indispensable ingredient across multiple industries.