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CETOLETH-4

CAS 68155-01-1
80

Safety score · 0–100

Good

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

An ethoxylated emulsifier derived from unsaturated C16-C18 fatty alcohols, used to blend oil and water phases in creams and lotions. Widely considered safe in cosmetics.

CETOLETH-4 is a non-ionic emulsifier derived from the ethoxylation of unsaturated C16-C18 fatty alcohols (oleyl and linoleyl chain predominance). With an average of 4 moles of ethylene oxide, it provides moderate hydrophilic-lipophilic balance suitable for semi-polar oil phases. It is not subject to EU restriction under Regulation (EC) 1223/2009 and is widely used in skin care and hair care emulsions at typical use levels of 1-5%.

Skin benefits

  • Stable emulsifier for skin care products
  • Imparts softness to skin
  • Compatible with a wide range of oil phases

Known concerns

  • Potential for trace residual monomers from unsaturated fatty alcohol source
  • Low-level skin sensitization reported in extreme concentrations

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