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Astringent

SODIUM ALUM

CAS 10102-71-3 / 10024-42-7 Updated
74

Safety score · 0–100

Fine

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

About

Sodium aluminium sulfate (a natural alum) used as an astringent and deodorant. Tightens skin and reduces odour. Safe at cosmetic levels but can sting freshly shaved skin.

Function

ANTIPERSPIRANTASTRINGENT

Skin benefits

  • Astringent and pore-tightening
  • Used in natural deodorant sticks
  • Mild antimicrobial action

Known concerns

  • Can sting on shaved or broken skin
  • Aluminium-containing salt — exposure debate continues

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.