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Antioxidant

S-SYRINGOYL ACETYL ETHYL CYSTEINATE

Updated
70

Safety score · 0–100

Fine

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

About

A cysteine-derived antioxidant marketed for skin brightening and oxidative stress reduction. Used at low percentages with no major hazard signals reported.

Function

SKIN CONDITIONING

Skin benefits

  • Antioxidant cysteine-derivative
  • Marketed for tyrosinase / pigment regulation
  • Skin-conditioning at low levels

Known concerns

  • Proprietary actives without CIR/SCCS opinion
  • Possible mild irritation at high concentrations
  • Stability sensitive to oxidation

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.