murphyPolyacrylate-18
molecular structure · PubChem
AKA: Polymer, Acrylate Polymer
Synthetic
Occlusive
Not Clean
OriginSynthesized from monomers including n-butyl acrylate, ethyl acrylate, methacrylic acid, and styrene through free radical polymerization. The resulting copolymer is formed by chain-growth polymerization of these acrylic and styrene monomers under controlled conditions.
Copolymer of n-butyl acrylate, ethyl acrylate, methacrylic acid, styrene monomers
CAS #
-
Form
Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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
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.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not an Eye Irritant
1 study / 1 not irritating (CIR 673)
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2014
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR