murphyAcrylates Crosspolymer-4
molecular structure · PubChem
AKA: Carbomer, Acrylic Acid Crosspolymer
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Synthetic
Cleanser
Occlusive
Emulsifier
Not Clean
OriginSynthesized from acrylic acid, methacrylic acid esters, and trimethylolpropane triacrylate as crosslinking agent. Produced through free radical polymerization and crosslinking to create a copolymer network structure.
Acrylates Crosspolymer-4 is copolymer of acrylic acid, methacrylic acid or one of its simple esters, crosslinked with trimethylolpropane triacrylate
CAS #
-
State
Solid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Viscosity Controlling
Stabilizes Emulsion
Creates Protective Barrier
Cleansing Surfactant
Controls Viscosity
Wound Healing
The paper trail
🔬Peer-reviewed1 paper →
⚖️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
Restricted By
Concentration Guide
Leave-on3.1%
Rinse-offNot reported
0%50%100%
CIR reported use · 2018 survey
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR