Sodium Acrylates Copolymer
AKA “Acrylates copolymer sodium salt, sodium polyacrylate
Synthetic
Ingredient Facts
Sodium acrylates copolymer
AKA: Acrylates copolymer sodium salt, Sodium polyacrylate
Synthetic · Film Forming · EWG: 2
Synthetic
Occlusive
Synthetic
Clean
Sodium Acrylates Copolymer is the sodium salt of a polymer consisting of acrylic acid, methacrylic acid or one of their simple esters Science: Functions: Binding, Film Forming, Opacifying, Viscosity Controlling Safety Ratings: CIR: Safe as used
CAS #
-
Form
Liquid
State
Solid
See origin →
Functions
Binding
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Opacifying
Viscosity Controlling
Anti-Inflammatory
Antimicrobial
Fights Acne
Traditional Use
Developed in the mid-20th century as a synthetic polymer specifically engineered for use as a thickening and film-forming agent in cosmetics and personal care products. This modern ingredient has no traditional predecessor.
Skin Types
all-skin-types, gentle
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
2
CIR
Safe w/Qualifications
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
ewg-2
medical-approval
pregnancy-nursing-safe
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Sodium Acrylates Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Sodium Polyacrylate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Sodium Acrylates Copolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Sodium Polyacrylate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Sensitisation to the acrylate co-polymers glyceryl acrylate/acrylic acid co-polymer, sodium polyacrylate and acrylates/C10-30 alkyl acrylate cross-pol
Soriano LF, Chowdhury MMU, Cousen P, Dawe S, Ghaffar SA et al.
Contact dermatitis, 2024
Sensitisation to the acrylate co-polymers glyceryl acrylate/acrylic acid co-polymer, sodium polyacrylate and acrylates/C10-30 alkyl acrylate cross-pol
Soriano LF, Chowdhury MMU, Cousen P, Dawe S, Ghaffar SA et al.
Contact dermatitis, 2024
Sensitisation to the acrylate co-polymers glyceryl acrylate/acrylic acid co-polymer, sodium polyacrylate and acrylates/C10-30 alkyl acrylate cross-pol
Soriano LF, Chowdhury MMU, Cousen P, Dawe S, Ghaffar SA et al.
Contact dermatitis, 2024
Sensitisation to the acrylate co-polymers glyceryl acrylate/acrylic acid co-polymer, sodium polyacrylate and acrylates/C10-30 alkyl acrylate cross-pol
Soriano LF, Chowdhury MMU, Cousen P, Dawe S, Ghaffar SA et al.
Contact dermatitis, 2024
Verified Feb 2026
Data: CosIng · EWG · CIR