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Emulsifier

STEARETH-20

CAS 9005-00-9 (Generic)
78

Safety score · 0–100

Fine

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

An ethoxylated stearyl alcohol emulsifier — keeps creams and lotions from separating across a broad pH range. Widely used and well tolerated; like all PEG ingredients, purified grades address 1,4-dioxane.

Skin benefits

  • Reliable non-ionic emulsifier
  • Compatible with wide pH range
  • Long history of cosmetic use

Known concerns

  • PEG-class trace 1,4-dioxane (purified grades minimize)
  • Mild eye irritation at high % in rinse-off

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.