Polyglyceryl-4 Oleate
Polyglyceryl-4 Oleate is an ester of polyglycerol and oleic acid (a fatty acid derived from oleate), with the chemical name 1,2,3-propanetriol homopolymer (z)-9-octadecenoate. It is registered under CAS numbers 9007-48-1 and 71012-10-7. It appears predominantly in cleansing oils, cleansing balms, and oil-to-milk cleansers, consistent with its emulsifying function. Its primary role is to help oil and water phases blend together in cosmetic formulations.
Polyglyceryl-4 Oleate functions as an emulsifier, enabling stable oil-in-water or water-in-oil formulations. Its presence in numerous cleansing oil products suggests it aids in the emulsification of makeup and sebum during rinsing. No additional skin-benefit claims are supported by the source.
