Butylene/ Ethylene/ Styrene Copolymer is a cosmetic ingredient. Rated low hazard by EWG.
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.
Viscosity Controlling
Anti-Inflammatory
Boosts Collagen
Wound Healing
Controls product thickness
Traditional Use
A synthetic polymer developed in the mid-20th century for use in cosmetics and personal care products, primarily functioning as a film-forming and suspending agent in formulations.