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Emollient

UNDECANE

CAS 1120-21-4
85

Safety score · 0–100

Good

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

A volatile C11 hydrocarbon — spreads products fast and dries down to a silky, weightless finish. Often paired with tridecane as a plant-based alternative to cyclomethicones.

Skin benefits

  • Lightweight quick-spreading emollient
  • Dry, non-greasy after-feel
  • Acts as a volatile silicone alternative
  • Plant-derivable hydrocarbon

Known concerns

  • Flammable in pure form (handled during manufacture, not by consumers)

References

EU

EU CosIng database

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

PC

PubChem

U.S. NIH compound data, GHS hazard codes and toxicity literature.

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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.