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THIOXANTHINE

CAS 261-31-4 Updated
38

Safety score · 0–100

Caution

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

About

A sulfur analogue of xanthine with limited cosmetic justification. PubChem flags acute oral toxicity and severe aquatic toxicity, placing it well outside the safe band for cosmetic use.

Function

ANTIOXIDANTHAIR CONDITIONING

Skin benefits

  • Niche specialty active
  • Used in research formulations

Known concerns

  • GHS H302 harmful if swallowed
  • GHS H400/H410 very toxic to aquatic life with long-lasting effects
  • Not a typical cosmetic ingredient

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.