- What is propylene glycol?
- Propylene glycol USP/EP (pharmaceutical grade)
- Industrial propylene glycol
With its unique combination of properties propylene glycol fulfils various roles in different environments. It
The propylene glycol molecule is chemically neutral, i.e. it usually does not react with other substances. This is a particularly helpful property when seeking to combine contrasting chemical elements, for example in a perfume, to create a single, homogeneous fluid.
By emulsifying the active ingredients, which otherwise would not mix, the propylene glycol creates a stable homogeneous fluid that will allow the intended final product, be it a face cream or shampoo, for example, to do its job.