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DI-T-BUTYLHYDROQUINONE

CAS 88-58-4
48

Safety score · 0–100

Moderate

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

About

Di-T-Butylhydroquinone is a cosmetic ingredient used in product formulations. Its specific function may vary between products. Exercise caution due to limited available safety data.

Di-t-butylhydroquinone (DTBHQ) is a synthetic phenolic antioxidant (CAS 88-58-4) historically used in cosmetics to prevent oxidation of oil-based formulations. It is a known skin sensitizer and is listed in EU Annex III/1, restricting its use in cosmetic products due to concerns about contact dermatitis and potential endocrine-disrupting activity. The Scientific Committee on Consumer Safety (SCCS) has flagged it for further review.

Skin benefits

  • Antioxidant protection for cosmetic formulations

Known concerns

  • Skin sensitization
  • Contact dermatitis risk
  • Potential endocrine disruption

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.