Methyl Methacrylate Crosspolymer

An acrylic crosspolymer used to thicken and stabilize cosmetic products. Established use in cosmetics indicates minimal skin irritation potential at typical formulation levels.

Cosmetic information for general education, not medical advice. A verdict is a reading of the published evidence, never a guarantee for your skin: any ingredient can irritate someone, so patch test new products and see a professional if you react. Concern is graded on cited evidence, never on hazard-score lists. See how we score.