Polyurethane-34

AKA: Polyurethane polymer, Film-forming agent

Synthetic

Not Clean

Polyurethane-34 is a complex polymer that is formed in a multi-step reaction. A copolymer of Hexanediol, Neopentyl Glycol, and Adipic Acid is reacted with hexamethylene diisocyanate. The resulting polymer is further reacted with N-(2-aminoethyl)-3-aminoethanesulfonic acid and ethylenediamine

CAS #

-

Form

Powder

Functions

Binding

Holds Formula Together

Holds ingredients together

Traditional Use

Modern synthetic polymer used in cosmetics for film-forming and protective applications. Designed to improve texture, durability, and performance in cosmetic products.

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