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Emollient

ISOSTEARIC ACID

CAS 30399-84-9 / 2724-58-5 Updated
82

Safety score · 0–100

Good

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

About

A branched 18-carbon fatty acid — oxidation-resistant and skin-compatible. Widely used as a glide-improving emollient in makeup and sunscreens.

Function

BINDINGCLEANSINGSURFACTANT - EMULSIFYINGSURFACTANT - CLEANSING

Skin benefits

  • Branched fatty acid — oxidation-stable emollient
  • Used in color cosmetics and sunscreens for smooth glide
  • Low irritation

Known concerns

  • No significant concerns at cosmetic concentrations

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