# TRIMETHYLSILOXY/DIMETHICONYL/POLYMETHYLSILSESQUIOXANE

URL: https://app.greenveil.ai/ingredients/ingredient_inci_trimethylsiloxy_dimethiconyl_polymethylsilsesquioxane
Categories: beauty
Functions: Film forming
Identifier: TRIMETHYLSILOXY/DIMETHICONYL/POLYMETHYLSILSESQUIOXANE

> TRIMETHYLSILOXY/DIMETHICONYL/POLYMETHYLSILSESQUIOXANE: Used in cosmetics as a film former. Trimethylsiloxy/Dimethiconyl/Polymethylsilsesquioxane is a siloxane polymer that is made by the hydrolysis and condensation of Trimethylchlorosilane, Bis-Chloro Dimethicone and Bis-Chloro Chloro Methicone. 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 — Trimethylsiloxy/Dimethiconyl/Polymethylsilsesquioxane is a siloxane polymer that is made by the hydrolysis and condensation of Trimethylchlorosilane, Bis-Chloro Dimethicone and Bis-Chloro Chloro Methicone.

## 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/106449

_Assessed by Greenveil._