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Antioxidant

SODIUM ACETYL CYSTEINATE

CAS 19542-74-6 Updated
70

Safety score · 0–100

Fine

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

About

A sodium salt of N-acetylcysteine — antioxidant and skin-conditioning thiol. Effective in low doses, but the reactive thiol can sensitise some users and lends a sulphurous note to formulas.

Function

ABSORBENTSKIN CONDITIONINGUV ABSORBER

Skin benefits

  • Antioxidant
  • Skin conditioning
  • UV absorption support

Known concerns

  • Reactive thiol can sensitise
  • Sulphurous odour at higher levels
  • Stability and pH sensitive

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.