# SILICON CARBIDE

URL: https://app.greenveil.ai/ingredients/ingredient_cas_409_21_2
Categories: beauty, cleaning, industrial
Functions: Abrasive
Identifier: DTXSID5052751

> SILICON CARBIDE: Used in cosmetics as an abrasive. Greenveil chemical-concern score: 100/100 — Critical concern based on regulatory listings.. Compiled from 6 published data sources.

## Safety assessment

- Chemical concern score: 100/100 — Critical concern based on regulatory listings.
- Confidence in this assessment: High
- Is it a concern? Critical concern: no hazard classifications on record. It is banned in EU cosmetics.
- Rationale: Silicon carbide fibres (with diameter < 3 μm, length > 5 μm and aspect ratio ≥ 3:1) is prohibited in cosmetic products under Annex II of the EU Cosmetics Regulation (EC) 1223/2009.

## Regulatory status

- EU: Active — Silicon carbide
- EU: Active — Cosmetics Regulation annex II / ref 1658.
- EU: banned — Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products.
- US: commercial use observed — EPA CPDat observed this chemical in 596 composition records across product categories including Construction and building materials, Electronics/small appliances, Raw materials. EPA CPDat classifies this chemical for functional uses including Abrasive, aggregate, Processing aids not otherwise specified.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

## 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/100272
- EU CosIng Cosmetics Regulation Annexes (updated 2021-11-03): https://ec.europa.eu/growth/tools-databases/cosing/reference/annexes/list/II
- EPA Chemical and Products Database (updated 23 March 2010): https://living-future.org/declare-products/eternal-step/
- 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
- FDA GSRS UNII (updated 2026-02-26): https://precision.fda.gov/uniisearch/
- openFDA Substance (updated 2026-05-24): https://api.fda.gov/other/substance.json?search=unii:WXQ6E537EW

_Assessed by Greenveil._