Dipropylene Glycol (DPG), a colorless, sticky and odor-free liquid, very hygroscopic and soluble in water and most organic solvents. Dipropylene glycol is a substance to produce polymers such as polyester and alkyd resins, and a plastifier used to produce other polymers, for instance PVC. Dipropylene glycol can also be the component of detergents and printing inks. Low toxicity and a high degree of solubility make it an ideal additive to perfume and skin and hair care products.