Other
Hexan-2-one (Methyl butyl ketone)
Safety score · 0–100
Avoid
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Hexan-2-one (methyl Butyl Ketone) is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.
Hexan-2-one (methyl n-butyl ketone) is classified with the Dangerous signal word and carries an extensive set of GHS hazard statements spanning acute toxicity, serious organ toxicity (H370), reproductive effects (H361f), neurotoxicity (H336), and repeated exposure effects (H372). It is a potent neurotoxicant and has been associated with peripheral neuropathy in occupational exposure settings. EU Regulation 1223/2009 Annex II specifically prohibits this substance in cosmetic products due to its neurotoxic and organ toxic properties, making its use in any cosmetic formulation illegal within the EU market.
Known concerns
- Flammable liquid and vapor (H226)
- May cause drowsiness or dizziness (H336)
- Suspected of damaging fertility (H361f)
- Causes damage to organs through prolonged or repeated exposure (H372)
- Causes damage to organs (H370)
- EU Annex II prohibited substance - banned in cosmetic products
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related others
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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.