Mono propylene glycol, often abbreviated as MPG or PG, is a synthetic organic compound with the chemical formula C3H8O2. It is a colorless, odorless, and viscous liquid that is non-toxic and easily soluble in water. In the food industry, MPG acts as a humectant, preserving moisture in processed foods and beverages. The pharmaceutical and cosmetic sectors utilize MPG for its solvent properties, often incorporating it into products like oral care items and skin creams.