Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Moisturizing
Strengthens Barrier
Anti-Inflammatory
Creates protective layer
Traditional Use
A synthetic plastic polymer developed in the early 20th century and adapted for cosmetic use. Used in cosmetics primarily as microbeads in exfoliating products and as a thickening or suspending agent (largely phased out due to environmental concerns).