1,2,4-TRIHYDROXYBENZENE

Other

22

Avoid

CAS Number: 533-73-3

About 1,2,4-TRIHYDROXYBENZENE

A synthetic dye or pigment used to add color rather than improve skin health.

Detailed Analysis

1,2,4-TRIHYDROXYBENZENE is a synthetic color additive or hair-dye ingredient used to deposit color rather than improve barrier function or hydration. Colorants and dye intermediates sit in a higher-scrutiny part of cosmetics safety because irritation and sensitization matter more here than with bland emollients. In finished cosmetics, risk is usually driven more by concentration and formulation context than by the ingredient name alone.

What It Does

HAIR DYEING

Known Concerns

  • Hair-dye ingredients can trigger irritation or sensitization
  • Phenolic dye intermediates can be reactive and sensitizing

Safety Score

22

Avoid

Based on EU regulatory data, published safety research, and ingredient function analysis.

References

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EU CosIng Database

European Commission cosmetic ingredient registry

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This information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional for skin concerns or allergies.