Solvent
MEK
Safety score · 0–100
Avoid
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Methyl ethyl ketone (MEK) — a volatile industrial solvent flagged GHS H225/H319/H336. Almost never appropriate in finished cosmetics; if present at trace residual levels only. Avoid in leave-on products.
Skin benefits
- Effective industrial solvent (rarely appropriate in cosmetics)
Known concerns
- GHS H225 highly flammable; H319 eye irritant; H336 narcotic CNS effects
- Inappropriate as a leave-on cosmetic ingredient — solvent for industrial use
- Volatile organic compound (VOC) with workplace exposure limits
- Skin and respiratory irritant
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related solvents
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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.