Dipropylene glycol is a chemical with a high boiling point and low toxicity. Its primary uses include a plasticizer, an intermediate in industrial chemical reactions, a polymerization initiator or as a solvent. Dipropylene glycol serves as an additive to skin care products, hair care products and perfumes. It is also a primary ingredient in the liquid used in fog machines used by the entertainment industry.
In perfumes, dipropylene glycol is a fragrance. It also decreases the viscosity of liquids, which makes skincare and hair care products thicker and less runny.
Aside from personal care products, dipropylene glycol has many other uses. Companies can put this chemical into hydraulic brake fluid formulations, cutting oils, textile lubricants, coatings, industrial soaps, and agricultural solvents such as pesticides.
Dipropylene glycol has very little toxicity to humans or animals. That’s why the chemical has such widespread use for many industrial processes.