Potassium Acrylates Copolymer

AKA: Potassium polyacrylates copolymer
Synthetic
Occlusive
Not Clean
Potassium Acrylates Copolymer is the potassium salt of a polymer consisting of acrylic acid, methacrylic acid or one of their simple esters
CAS #
-
Form
Liquid
State
Solid
Functions
Binding
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Holds Formula Together
Creates Protective Barrier
Creates protective layer
Holds ingredients together
Traditional Use
A synthetic copolymer created in the 20th century for cosmetic formulation. Used as a thickener and texture modifier in contemporary personal care products.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: CosIng · EWG · CIR