Propylene Glycol USP/EP is used as an excipient (non-active ingredient) in the manufacture of pharmaceutical products. It is also used as a humectant and emulsifier in the production of food and personal care products and in liquid laundry detergents. LyondellBasell propylene glycol USP/EP is a high purity product, which meets all the requirements of the current United States and European Pharmacopeias and various other regulations and standards for pharmaceutical, food and cosmetic additives.