Skip to content

Industrial substance (prohibited)

Gallium arsenide

CAS 1303-00-0
2

Safety score · 0–100

Avoid

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

A semiconductor material used in electronics, never in cosmetics. Classified as a carcinogen and reproductive toxicant in the EU, it is included here only as a regulator-prohibited substance.

Skin benefits

  • No cosmetic benefit, this is a semiconductor compound
  • Used in electronics, lasers, and solar cells

Known concerns

  • Classified as a Category 1B carcinogen and reproductive toxicant by IARC and EU CLP
  • Releases inorganic arsenic species, a known human carcinogen
  • Prohibited in cosmetics under EU CMR rules
  • Highly hazardous as inhalable dust, no place on skin

References

EU

EU CosIng database

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

Check your shelf

Find Gallium arsenide in your products.

Scan any cosmetic product with LuxSense to see if it contains Gallium arsenide and get a full ingredient breakdown with safety scores.

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