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3-METHOXYBUTANOL

CAS 2517-43-3
62

Safety score · 0–100

Fine

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

About

An alkoxy alcohol solvent used in cosmetic and cleaning formulations for its coupling and solvency properties. Mild irritation potential at high concentrations; not restricted under EU cosmetics law.

3-Methoxybutanol is an ether-alcohol solvent used in cosmetic formulations as a coupling agent and solvent for difficult-to-dissolve ingredients. It is not specifically restricted under EU Regulation 1223/2009, though it has mild skin and eye irritation potential at elevated concentrations. Typical cosmetic use is at low concentrations in rinse-off formulations.

Skin benefits

  • Solvent properties aid in formulation homogeneity

Known concerns

  • Mild skin and eye irritation at high concentrations
  • Used primarily in rinse-off cosmetic formulations

References

EU

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 — always read the physical product label and consult a healthcare professional for personal concerns.