# alpha-Methylstyrene-styrene copolymer

URL: https://app.greenveil.ai/ingredients/ingredient_dtxsid_dtxsid40904972
Categories: beauty, industrial
Functions: Depilatory, Binding
Identifier: DTXSID40904972

> alpha-Methylstyrene-styrene copolymer: Used in cosmetics as a depilatory and a binder. EPA CPDat observed this chemical in 22 composition records across product categories including Vehicle, Arts and crafts/office supplies, Personal care. Compiled from 3 published data sources.

## 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: EPA CPDat observed this chemical in 22 composition records across product categories including Vehicle, Arts and crafts/office supplies, Personal care.

## Regulatory status

- EU: Active — Ethenyl-benzene and (1-methyl-ethenyl) benzene copolymer
- US: commercial use observed — EPA CPDat observed this chemical in 22 composition records across product categories including Vehicle, Arts and crafts/office supplies, Personal care. EPA CPDat classifies this chemical for functional uses including Binder, Depilatory, Filler.

## 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/58904
- EPA Chemical and Products Database (updated January 7, 2008): http://siri.org/msds/f2/bwx/bwxcq.html
- EPA DSSTox Identifiers (updated 2025-12-29): https://epa.figshare.com/articles/dataset/Chemistry_Dashboard_Data_DSSTox_Identifiers_Mapped_to_CAS_Numbers_and_Names/5588566

_Assessed by Greenveil._