murphyAmmonium Polyacrylate
AKA: Polyacrylic acid ammonium salt
Synthetic
Cleanser
Occlusive
Clean
OriginDerived from acrylic acid and ammonia, both petroleum-based chemical precursors from the synthetic polymer family. Synthesized through free radical polymerization of acrylic acid monomers followed by neutralization with ammonia.
2-Propenoic acid, homopolymer, ammonium salt
CAS #
9003-03-6
Form
Powder
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.
Light Stabilizer
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Shields from UV damage
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.
Verified Jun 2026
Data: CosIng · EWG · CIR