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Exfoliant

SILICON CARBIDE

CAS 409-21-2
35

Safety score · 0–100

Caution

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

A very hard abrasive used in industrial grinding and some exfoliating products — GHS classified as a suspected carcinogen when inhaled as fine dust. Handle with caution.

Silicon Carbide (SiC, CAS 409-21-2) is an extremely hard crystalline compound used as an abrasive in cosmetics and industrial applications. The significant concern is its GHS classification H350/H350i (may cause cancer by inhalation), which relates to respirable crystalline whisker/fiber forms. H372 indicates organ damage through repeated exposure. In cosmetic use as a scrub/exfoliant, dermal exposure is the primary route, which is less concerning than inhalation. However, the carcinogenicity classification for inhaled fibers/dust is a serious flag that warrants caution. CosIng lists it with an abrasive function.

Function

ABRASIVE

Skin benefits

  • Effective physical exfoliant due to extreme hardness

Known concerns

  • GHS H350i — suspected carcinogen via inhalation
  • Repeated exposure may cause organ damage (H372)
  • Fine dust/fibers pose respiratory risk
  • Skin and eye irritation possible (H315, H319)

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

Related exfoliants

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.