murphyAcrylates/Hydroxyesters Acrylates Copolymer
molecular structure · PubChem
AKA: Acrylic copolymer, Film-forming polymer
Synthetic
Occlusive
Clean
OriginDerived from acrylic acid, methacrylic acid, and their esters as starting monomers from petroleum-based sources. Synthesized through free radical polymerization of these monomers to form cross-linked copolymer chains.
Copolymer of one or more monomers consisting of acrylic acid, methacrylic acid or one of their simple esters, and one or more monomers of hydroxyacrylate esters
Form
Liquid
State
Solid
Skin Types
●all-skin-types, gentle
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-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 763)
Skin Irritant in Testing
1 study / 1 irritating / reactions slight (CIR 763)
Eye Irritant in Testing
1 study / 1 irritating / reactions slight (CIR 763)
Concentration Guide
Leave-on0.71–6%
Rinse-offNot reported
0%50%100%
CIR reported use · 2018 survey
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR