# POLYURETHANE-55

URL: https://app.greenveil.ai/ingredients/ingredient_inci_polyurethane_55
Categories: beauty
Functions: Nail conditioning
Identifier: POLYURETHANE-55

> POLYURETHANE-55: Used in cosmetics as a nail conditioning agent. 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-55 is the polymer formed by the reaction of Poly(1,4-Butanediol)-28, Poly(1,4-Butanediol)-14, and 1,3-bis(isocyanatomethy)cyclohexane. The polymer is capped with 4-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/91635

_Assessed by Greenveil._