Polyester-40
Used in cosmetic products as film forming. Polyester-40 is a copolymer that is formed by the condensation of hydrogenated dimer acids and hydrogenated dimer alcohols. The copolymer is capped with Stearic Acid (q.v.). The hydrogenated dimer acids are made from Rapeseed Acid by reacting the unsaturated fatty acids followed by hydrogenation. The dimer alcohols are produced by reducing the acid groups on the hydrogenated dimer acids to convert them to hydroxyl groups.
The chemical behind this ingredient
Structure, properties, safety data and price information live on the chemical page.
Frequently asked questions
What is Polyester-40 used for in cosmetics?
Polyester-40 is used in cosmetic products as film forming. Polyester-40 is a copolymer that is formed by the condensation of hydrogenated dimer acids and hydrogenated dimer alcohols. The copolymer is capped with Stearic Acid (q.v.). The hydrogenated dimer acids are made from Rapeseed Acid by reacting the unsaturated fatty acids followed by hydrogenation. The dimer alcohols are produced by reducing the acid groups on the hydrogenated dimer acids to convert them to hydroxyl groups.
Is Polyester-40 restricted in cosmetics in the EU?
No EU restriction annex is recorded for Polyester-40 in our records. Rules change and differ by market, so always check the current regulation before you formulate.