Polyacrylate-18
molecular structure · PubChem
AKA: Polymer, Acrylate Polymer
Synthetic
Occlusive
Not Clean
Copolymer of n-butyl acrylate, ethyl acrylate, methacrylic acid, styrene monomers
CAS #
-
Form
Powder
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Creates Protective Barrier
Traditional Use
A synthetic polymer developed for the cosmetics industry to function as a thickening and stabilizing ingredient.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR