Acrylamide/Ethyltrimonium Chloride Acrylate/Ethalkonium Chloride Acrylate Copolymer

AKA: Acrylamide Copolymer
Synthetic
Occlusive
Skin Conditioner
Hair Care
Not Clean
2-Propenamide, polymer with 2-(trimethylammonio)ethyl 2-propenoate chloride and 2-(benzyldimethylammonio)ethyl 2-propenoate chloride
CAS #
-
Form
Liquid
State
Solid
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Viscosity Controlling
Locks in moisture
Traditional Use
A modern synthetic copolymer developed for hair care and styling products. Created in the late 20th century to provide conditioning and styling benefits through advanced polymer chemistry.
EWG
4
CIR
Safe as used
Pregnancy
No
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUpermitted
JAPANpermitted
CANADApermitted
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
No
The paper trail
🔬Peer-reviewednone on file
⚖️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