Propylene Glycol 1 Gallon - USP - Food Grade Safety Sealed HDPE Resealable Lid Finest Quality Propylene Glycol for use as moisturizer in medicines, cosmetics, food, toothpaste, shampoo, mouth wash and hair care. Uses: Antifreeze Solutions, Solvent for fats, oils, waxes, resins. Hygroscopic agent. Coolant in refrigeration systems, plasticizers, hydraulic fluids, textile conditioners