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Humectant

ALUMINUM PCA

CAS 59792-81-3 Updated
78

Safety score · 0–100

Fine

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

About

The aluminum salt of PCA (a natural moisturising factor). Acts as a humectant and mild astringent. CIR found PCA salts safe in cosmetic use; avoid in nitrosating formulas.

Function

ASTRINGENTSKIN CONDITIONING

Skin benefits

  • Humectant — pulls moisture into skin
  • Astringent in deodorants
  • Skin conditioning

Known concerns

  • Should not be used where N-nitroso compounds can form
  • Aluminum salt (deodorant-class concerns)
  • Limited dossier vs sodium PCA

References

EU

EU CosIng database

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

Related humectants

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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.