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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.
1% line marker
This ingredient is commonly used as a marker to identify where ingredients drop below 1% concentration on the label.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.