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ISOSTEAROYL TRIMELLITIC ANHYDRIDE/TRIMETHYLOLPROPANE COPOLYMER

Description

ISOSTEAROYL TRIMELLITIC ANHYDRIDE/TRIMETHYLOLPROPANE COPOLYMER is a sophisticated film-forming agent and emollient primarily used in cosmetic formulations, particularly in lip products and long-wearing makeup. This synthetic copolymer is derived from the reaction of isostearoyl trimellitic anhydride with trimethylolpropane, resulting in a substance with unique properties beneficial for cosmetic applications.

The copolymer functions as an effective film former, creating a flexible, water-resistant barrier on the skin or lips. This characteristic makes it ideal for formulating long-lasting, transfer-resistant makeup products. Its emollient properties contribute to a smooth, non-greasy feel, enhancing the texture and application of cosmetics.

In lip products, it helps to improve color retention and prevent feathering. For foundations and other face makeup, it aids in creating a durable, smudge-resistant finish. The copolymer also demonstrates good compatibility with a wide range of cosmetic ingredients, including pigments and oils.

While primarily used in color cosmetics, its film-forming and water-resistant properties make it potentially useful in sunscreens and other protective skincare formulations. However, formulators should be mindful of potential sensitivities in individuals with reactive skin.