Ingredient
Phthalic Anhydride/Trimellitic Anhydride/Glycols Copolymer
What is Phthalic Anhydride/Trimellitic Anhydride/Glycols Copolymer?
Phthalic Anhydride/Trimellitic Anhydride/Glycols Copolymer is a synthetic polymer used mainly as a film-forming agent. It is created through the reaction of phthalic anhydride or trimellitic anhydride with glycols, resulting in a compound that provides a smooth and durable finish.
This ingredient is commonly found in makeup products for its ability to enhance texture and provide long-lasting wear. Health evidence is limited, but as with many synthetic polymers, there is ongoing evaluation regarding potential sensitization or irritation.
When you see this ingredient on a label, it is used primarily for its film-forming properties, and consumers with sensitive skin may want to perform a patch test before use.
Commonly found in: Makeup, Nail products, Hair care products
What to watch
- Some studies suggest that phthalates, in general, may have endocrine-disrupting properties, but evidence specific to this copolymer is limited.
The FDA does not specifically regulate this copolymer but requires that all cosmetic ingredients be safe for use.
Research on this specific copolymer is limited, but similar compounds have been studied for sensitization and irritation.
This ingredient is synthetic and not derived from animal products, thus generally considered vegan.
Sources: Cosmetic Ingredient Review
Scout's take
This ingredient is a synthetic polymer that can cause allergic reactions in some individuals. It is associated with potential health risks, particularly for those with sensitivities.
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