Ethylenediamine/Stearyl Dimer Dilinoleate Copolymer

This is a polyamide gelling agent formed from ethylenediamine and dimer dilinoleic acid and end-capped with stearyl groups, used to thicken and structure the oil phase in products like mascara and anhydrous sun creams. It has not had its own CIR safety review, but the closely related family of dimer dilinoleate esters built on the same fatty diacid backbone has been reviewed and found safe in cosmetic use, and as a large, oil-soluble polymer it is not expected to penetrate skin.

Cosmetic information for general education, not medical advice. A verdict is a reading of the published evidence, never a guarantee for your skin: any ingredient can irritate someone, so patch test new products and see a professional if you react. Concern is graded on cited evidence, never on hazard-score lists. See how we score.