Polyacrylate-21
AKA “Polymer, Acrylate Polymer
Synthetic
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Ingredient Facts
Polyacrylate-21
AKA: Polymer, Acrylate Polymer
Synthetic · Binding | Film Forming | Hair Fixing · EWG: 4
Plant-Derived
Occlusive
Synthetic
Clean
Polyacrylate-21 is a copolymer of 2-ethylhexyl acrylate, butyl methacrylate, methacrylic acid, methyl methacrylate, hydroxypropyl methacrylate and styrene Science: Functions: Binding, Film Forming, Hair Fixing Safety Ratings: CIR: Safe as used
CAS #
-
Form
Powder
Plant-Derived
Synthetic. Synthesized from acrylate monomers including 2-ethylhexyl acrylate, butyl methacrylate, and styrene through chemical polymerization. Produced via free-radical polymerization of multiple acrylate and methacrylate monomers to form a copolymer.
Function
Binding | Film Forming | Hair Fixing
Benefits
Holds Formula Together
Creates Protective Barrier
Hair Fixing
Creates protective layer
Holds hair in place
Holds ingredients together
Traditional Use
A synthetic polymer created for cosmetic applications as a thickening and stabilizing agent, with no traditional use history.
Skin Types
all-skin-types
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score4
CIR Safety Findings
medical-approval, all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR