Polyglyceryl-4 Caprate
Polyglyceryl-4 Caprate (CAS #160391-93-5) is a polyglycerol ester derived from capric acid (a 10-carbon fatty acid), described chemically as a homopolymer of 1,2,3-propanetriol with decanoates at a 4 mol glycerol average molar ratio. It is a water-loving (hydrophilic) ingredient primarily used as a solubilizer in water-based, toner-like formulas to dissolve small amounts of oil-soluble materials such as essential oils or fragrances into watery liquids. It also carries some emollient properties, contributing to a smooth skin feel.
Functions as a solubilizer to incorporate oil-loving ingredients into water-based formulations. Also provides mild emollient properties, leaving skin feeling smooth. Its official CosIng-listed function is emulsifying.
