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A synthetic copolymer formed from phthalic anhydride, trimellitic anhydride, and glycols. It functions as a film-forming agent, often used in nail polishes or hair styling products to provide gloss, adhesion, and durability.
Beneficial for
Safety summary
Generally considered safe for topical use in cosmetic formulations.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.