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Thickener

METHYL ETHYLCELLULOSE

CAS 9004-59-5 Updated
88

Safety score · 0–100

Good

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

About

A dual-substituted cellulose polymer that thickens cosmetic formulations and forms a flexible film on skin. Plant-derived, very high molecular weight, and consistently CIR-classed as safe.

Function

BINDINGFILM FORMINGVISCOSITY CONTROLLING

Skin benefits

  • Builds smooth viscosity in gels and lotions
  • Plant-derived and biodegradable
  • Forms a soft film on skin

Known concerns

  • No significant concerns at cosmetic concentrations

References

EU

EU CosIng database

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

Related thickeners

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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.