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Antioxidant

THEANINE

CAS 3081-61-6 Updated
72

Safety score · 0–100

Fine

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

About

Theanine, the calming amino acid from tea leaves. Used as a skin antioxidant. ECHA GHS data flags possible mild skin sensitisation, so use within typical low percentages.

Skin benefits

  • Antioxidant from green tea
  • Soothing claims
  • Mild amino-acid profile

Known concerns

  • GHS H317 — may cause an allergic skin reaction
  • Use within recommended cosmetic concentrations
  • Patch test for sensitive users

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.