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Thickener

ALUMINUM ISOSTEARATE

CAS 72277-75-9 Updated
78

Safety score · 0–100

Fine

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

About

An aluminium salt of isostearic acid — thickens and stabilises oil-based products. Skin absorption from cosmetic salts is low; sits as yellow due to ongoing aluminium-exposure scrutiny.

Function

ANTICAKINGEMULSION STABILISINGOPACIFYINGVISCOSITY CONTROLLING

Skin benefits

  • Thickens oil phases
  • Stabilises emulsions
  • Improves powder dispersion

Known concerns

  • Aluminium content debate (skin penetration is low)
  • Possible mild irritation at high levels
  • Not for use on broken skin

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.