HDI/PEI-45/SMDI Crosspolymer

AKA: Hexamethylene diisocyanate crosspolymer

Synthetic

Not Clean

OriginSynthesized from aliphatic isocyanates (HDI, PEI) and alicyclic diisocyanate (SMDI) as starting materials. Produced through polymerization and crosslinking reactions to create a branched polymer network structure.

HDI/PEI-45/SMDI Crosspolymer is the crosslinked polymer formed by the reaction of PEI-45 with saturated methylenediphenyldiisocyanate (SMDI) and hexamethylene diisocyanate (HDI).

Form

Liquid

State

Solid

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

Functions

Absorbent

Plasticiser

Absorbs excess oil

Adds flexibility

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 2016

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