# BIS-(METHOXY PEG-12 CARBAMOYL) 1,4-BUTANEDIOL/POLY-SMDI COPOLYMER

URL: https://app.greenveil.ai/ingredients/ingredient_inci_bis_methoxy_peg_12_carbamoyl_1_4_butanediol_poly_smdi_copolymer
Categories: beauty
Functions: Hair conditioning, Hair dyeing, Hair fixing, Hair waving or straightening, Nail conditioning
Identifier: BIS-(METHOXY PEG-12 CARBAMOYL) 1,4-BUTANEDIOL/POLY-SMDI COPOLYMER

> BIS-(METHOXY PEG-12 CARBAMOYL) 1,4-BUTANEDIOL/POLY-SMDI COPOLYMER: Used in cosmetics as a hair conditioner, a hair dye and a hair fixative. 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 — Bis-(Methoxy PEG-12 Carbamoyl) 1,4-Butanediol/Poly-SMDI Copolymer is the copolymer of the polycarbodiimide formed by the condensation polymerization of Saturated Methylene Diphenyl Diisocyanate with 1,4-Butanediol and end-capped with methoxy PEG-12.

## 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/106260

_Assessed by Greenveil._