Skip to content

Other

THIOXANTHINE

CAS 261-31-4
38

Safety score · 0–100

Caution

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

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.

Related others

38
2,2'-[(4-Amino-3-nitrophenyl)imino]bisethanol hydrochloride and its salts
Other
 38
2,3-Dichloro-2-methylbutane
Other
 38
2-HEXYLOXY-P-PHENYLENEDIAMINE HCL
Other
 38
2-T-BUTYLCYCLOHEXYL ACETATE
Other
 38
2-[(3-Amino-4-methoxyphenyl)amino]ethanol and its sulphate
Other
 38
3-Amino-7- (dimethylamino)-2- methoxyphenoxazin- 5-ium chloride
Other
 38
4-NITRO-O-PHENYLENEDIAMINE DIHYDROCHLORIDE
Other
 38
4-[(2-Nitrophenyl)amino]phenol
Other

Check your shelf

Find THIOXANTHINE in your products.

Scan any cosmetic product with LuxSense to see if it contains THIOXANTHINE and get a full ingredient breakdown with safety scores.

This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.