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Ethionamide (INN)

CAS 536-33-4 Updated
6

Safety score · 0–100

Avoid

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

About

A second-line tuberculosis antibiotic — never appropriate for cosmetics. Listed on the EU cosmetics ban list (Annex II); appearance in any product would be a regulatory non-compliance.

Skin benefits

  • No legitimate cosmetic function

Known concerns

  • Second-line tuberculosis drug — not a cosmetic ingredient
  • Listed in EU Annex II (banned in cosmetics)
  • Hepatotoxic and teratogenic at therapeutic doses

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.