inorganic compound
Molybdenum trioxide
Safety score · 0–100
Avoid
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
An inorganic molybdenum oxide used in industrial catalysis and pigments. It carries respiratory irritation and suspected carcinogen classifications and has no recognized cosmetic role.
Skin benefits
- Provides yellow inorganic pigmentation in industrial applications
- Acts as a corrosion inhibitor in some formulations
Known concerns
- GHS H335 respiratory irritant and H351 suspected carcinogen
- Toxic by inhalation in powder form
- No legitimate cosmetic safety justification
- Not approved for cosmetic colorant use in EU Annex IV
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
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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.