Homopolymer of butyl methacrylate Science: Functions: Film Forming Safety Ratings: CIR: Safe as used
CAS #
9003-63-8
Form
Powder
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Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Viscosity Controlling
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Smoothing
Creates Protective Barrier
Traditional Use
Developed in the mid-20th century as a synthetic acrylic polymer. Used in cosmetics since the 1960s as a film-forming agent to provide long-lasting wear and water resistance in nail polishes and makeup products.