PPG-26/HDI Copolymer

AKA: Polypropylene Glycol 26/Hexamethylene Diisocyanate Copolymer

Synthetic

Occlusive

Not Clean

Polyoxypropylene (26) and hexyldiisocyanate copolymer

Form

Liquid

State

Solid

Functions

Film Forming

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

Plasticiser

Creates protective layer

Adds flexibility

Traditional Use

A synthetic polymer created by combining polypropylene glycol with hexamethylene diisocyanate. Developed for use in cosmetic films and styling products to provide texture and hold.

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