Acrylamide/Ammonium Acrylate Copolymer

AKA: Acrylamide Copolymer
Synthetic
Occlusive
Not Clean
2-Propenoic acid, ammomium salt, polymer with 2-propenamide
CAS #
26100-47-0
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.
Hair Fixing
Holds Formula Together
Creates Protective Barrier
Creates protective layer
Holds hair in place
Holds ingredients together
Traditional Use
A synthetic polymer developed in the latter half of the 20th century for cosmetic thickening and suspension purposes. Created to provide stable, uniform texture in lotions and creams without traditional gelling agents.
EWG
3
CIR
Safe as used
Pregnancy
No
CIR Safety Findings
ewg-3
medical-approval
all-shades-safe
Mild Irritant
Regulatory Status
USApermitted
EUpermitted
JAPANpermitted
CANADApermitted
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
No
The paper trail
🔬Peer-reviewed1 paper
⚖️Regulatory1 listing
🛡️Safety-assessed2 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR