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CETOLETH-5

CAS 68155-01-1
78

Safety score · 0–100

Fine

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

About

An ethoxylated fatty alcohol used as an emulsifier — helps oil and water mix smoothly in creams and lotions. Generally well-tolerated on skin.

Cetoleth-5 is a polyethylene glycol ether of C16-C18 unsaturated alcohols with an average of 5 moles of ethylene oxide. It functions primarily as a nonionic emulsifier and solubilizer in cosmetic formulations. Like other low-EO ethoxylated alcohols, it provides moderate emulsification while maintaining a relatively mild skin interaction profile. Limited dedicated toxicological studies exist, but the broader class of ceteth/cetoleth emulsifiers has been reviewed by CIR and found safe as used.

Skin benefits

  • Improves product texture and spreadability
  • Helps deliver active ingredients evenly across skin

Known concerns

  • Potential for mild irritation at high concentrations
  • May contain trace 1,4-dioxane from ethoxylation process

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.