Tridecyl Trimellitate Good Emollient Hydration Tridecyl Trimellitate at a glance Used as a skin-softening emollient, film-forming agent, and texture-enhancing ingredient Also touted as an excellent pigment dispersant in cosmetic formulas Described as a high-viscosity liquid in raw material form Deemed safe by the Cosmetic Ingredient Review Expert Panel Tridecyl Trimellitate description Tridecyl trimellitate is a synthetic ingredient used as a skin-softening emollient, film-forming agent, and texture-enhancing ingredient. It is also touted as an excellent cosmetic pigment dispersant. As a raw material, tridecyl trimellitate is described as a high-viscosity liquid. The Cosmetic Ingredient Review Expert Panel assessment (completed in 2015) concluded that tridecyl trimellitate is safe in cosmetics. Based on their survey results, the maximum reported concentration of use was 57.1% in lipstick formulations. Related ingredients: Thickening Agent