Propylene glycol isostearate (inci)

Propylene glycol (1,2-propanediol)" means a dihydric alcohol which, due to its chemical and physical properties, is widely used in pharmaceuticals, cosmetics and technology both as a mono-substance and as a component of an ester, "isostearate" means the ester of "isostearic acid" of a saturated mono-carboxylic acid.

Propylene glycol isostearate is used in cosmetic formulations. The substance acts as an emollient (makes the skin smooth and supple) and as an emulsifier (a surface-active substance which is used in cosmetic products as an additive to combine two immiscible liquids - e.g. oil and water - to form an emulsion).