# POLYURETHANE-66

URL: https://app.greenveil.ai/ingredients/ingredient_inci_polyurethane_66
Categories: beauty
Functions: Binding
Identifier: POLYURETHANE-66

> POLYURETHANE-66: Used in cosmetics as a binder. Canonical ingredient record built from 1 public-source records. Compiled from 1 published data source.

## Safety assessment

- Chemical concern: not yet assessed
- Is it a concern? We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.
- Rationale: Canonical ingredient record built from 1 public-source records.

## Regulatory status

- EU: Active — Polyurethane-66 is a urethane polymer formed by reacting a polymer of 1,4-butanediol that contains an average of 28 moles of butylene oxide with a combination of isophorone diisocyanate (IPDI) and 1,3-bis(isocyanomethyl)cyclohexane. The polymer is end-blocked with hydroxybutyl acrylate.

## Expert safety opinions

- SCCS (EU Scientific Committee on Consumer Safety): no opinion on file.
- CIR (Cosmetic Ingredient Review (US expert panel)): no opinion on file.

## Data sources

- CosIng (updated 2026-09-23): https://ec.europa.eu/growth/tools-databases/cosing/details/93518

_Assessed by Greenveil._