Polyurethane-13
AKA “Polyurethane-13, PU-13
Ingredient
Ingredient Facts
Polyurethane-13
AKA: PU-13
Ingredient · Film Forming · EWG: 4
Synthetic
Occlusive
Not Clean
Trimethylolpropane, dimethylol propionic acid, hexanediol, adipic acid, polyester diol, and isocyanato methylethylbenzene copolymer
CAS #
-
Form
Powder
See origin →
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
Traditional Use
Synthetic polymer used in contemporary cosmetics as a film-forming and conditioning ingredient. Created to enhance product texture and provide water-resistant protective layers.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR