Ethenylbenzene, polymer with 2-propenoic acid, 2-methyl-2-propenoic acid and/or one of their simple esters, ammonium salts Science: Functions: Film Forming, Opacifying Safety Ratings: CIR: Safe as used
Form
Liquid
State
Solid
See origin →
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Opacifying
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Astringent
Tightens and contracts skin tissue, temporarily shrinking pores and reducing oiliness. That "clean, tight" feeling after toner.
Creates Protective Barrier
Adds Opacity
Reduces Inflammation
Locks In Moisture
Creates protective layer
Creates creamy opacity
Traditional Use
A synthetic polymer developed in the mid-20th century. Used in cosmetics as a film-former and thickening agent with no traditional precedent.