Propylene glycol is a colorless, odorless liquid that is commonly used in various industries. It is a type of synthetic organic compound that is safe for human consumption, making it popular in food and beverage products as a food additive. It helps to retain moisture and improve texture in items like baked goods and ice cream. In addition to its use in food, propylene glycol is also found in cosmetics, pharmaceuticals, and even antifreeze. Its ability to dissolve many substances makes it a versatile ingredient in many products, helping to enhance their effectiveness and stability.