Is polyglyceryl-2 triisostearate vegan?

Polyglyceryl-2 triisostearate is a synthetic ester composed of diglycerol and isostearic acid. It is produced by reacting fatty acids with polyglycerol molecules, functioning primarily as an emulsifier, binding agent, and emollient. While it is most frequently encountered in cosmetics such as lip balms and lipsticks, it also appears in dietary supplements, flavor carriers, and ingestible product coatings.

This ingredient is classified as possibly vegan because its raw materials can come from either plant or animal sources. The isostearic acid and glycerol components can be derived from vegetable fats, including palm, coconut, or soybean oil. Alternatively, they can be processed from rendered animal fat, such as tallow. Standard ingredient labels rarely disclose the origin of the lipid base. A vegan certification on the packaging or direct confirmation from the manufacturer is required to verify that a specific batch is plant-derived.