Propylene glycol

Propylene glycol is a clear, colorless liquid commonly used in food, pharmaceuticals, and cosmetics. It's an organic compound derived from petroleum and is valued for its ability to retain moisture, enhance flavor, and dissolve substances. In food products, it acts as a humectant, preventing drying out, while in lotions and creams, it helps keep skin hydrated. Generally recognized as safe by health authorities, it has applications ranging from antifreeze to e-cigarette liquids. While it's safe for consumption and topical use, it's distinct from ethylene glycol, which is toxic and not safe for human use.