Polyquaternium-47

AKA: 197969-51-0, Methyl prop-2-enoate;prop-2-enoic acid;trimethyl-[3-(2-methylprop-2-enoylamino)propyl]azanium;chloride
Synthetic
Occlusive
Skin Conditioner
Clean
1-Propanaminium, N,N,N-trimethyl-3-[(2-methyl-1-oxo-2-propenyl)amino]-, chloride, polymer with methyl 2-propenoate and 2-propenoic acid
Formula
C17H31ClN2O5
Mol. Weight
378.90
CAS #
197969-51-0
Form
Powder
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Hair Fixing
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
A modern synthetic cationic polymer developed in the 2000s. Created to provide enhanced conditioning and detangling properties with improved safety profile for sensitive skin and hair applications.
EWG
1
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-reviewednone on file
⚖️Regulatory1 listing
🛡️Safety-assessed2 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR