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Phthalic anhydride is primarily used in industrial applications, such as in the production of plastics and resins. It is not typically used as a direct ingredient in cosmetic formulations applied to the skin.
May aggravate
Safety summary
This ingredient is an irritant and sensitizer and is not suitable for direct application to the skin in cosmetic products. Its presence would indicate a manufacturing contaminant or an industrial-grade product.
CAS Number
85-44-9
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.