Contains not less than 99.5% of C₃H₈O₂. Viscous, transparent, colorless liquid. It absorbs moisture when exposed to humid air.
It has properties such as humectant, preservative, stabilizer, plasticizer, softener, crystallization modifier, ideal solvent, viscosity controller, and rehydration aid.
As a humectant, it helps absorb excess water, preventing bacterial growth and extending the product’s shelf life.
It also helps other ingredients penetrate the skin.
Propylene glycol is an excellent solvent for many organic chemical substances that are insoluble in water.