Polyurethane-28

AKA: Polyurethane polymer, Film-forming agent

Synthetic

Cleanser

Emulsifier

Not Clean

Polyurethane-28 is a complex polymer formed by the reaction of Bis-Hydroxyethoxypropyl Dimethicone with isophorone diisocyanate (IPDI) and Sorbitan Isostearate.

CAS #

-

Functions

Cleansing

Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.

Emulsifying

Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.

Cleansing Surfactant

Emulsifier

Removes Impurities

Mixes Oil & Water

Traditional Use

Synthetic polymer created for cosmetic applications to provide flexible film-forming properties. Designed to enhance durability and wear-resistance in makeup formulations.

EWG

CIR

Safe as used

Pregnancy

Yes

CIR Safety Findings

Not a Sensitizer

medical-approval

all-shades-safe

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

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