Polyurethane-13

AKA: PU-13

Synthetic

Occlusive

Not Clean

OriginSynthesized from trimethylolpropane, dimethylol propionic acid, hexanediol, adipic acid, and isocyanato methylethylbenzene as the primary chemical components. Produced through polycondensation and polyurethane formation between polyol and isocyanate reactants.

Trimethylolpropane, dimethylol propionic acid, hexanediol, adipic acid, polyester diol, and isocyanato methylethylbenzene copolymer

CAS #

-

Form

Powder

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

Functions

Film Forming

Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.

Creates Protective Barrier

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.

EWG

CIR

Safe as used

Pregnancy

Yes

Concentration Guide

CIR lists it as not reported to be in use.

CIR · report published 2017

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Verified Jun 2026

Data: CosIng · EWG · CIR