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HYDROXYBENZALDEHYDE

CAS 123-08-0
82

Safety score · 0–100

Good

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

About

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

Hydroxybenzaldehyde (p-hydroxybenzaldehyde) is a multifunctional phenolic aldehyde used as a fragrance ingredient and antioxidant in cosmetic formulations. EU REACH registration indicates low concern at typical use concentrations, with no EU cosmetic restrictions currently in place. The phenolic OH group provides antioxidant properties while the aldehyde remains at low reactive potential due to the para-substitution.

Skin benefits

  • Antioxidant properties (phenolic OH group)
  • Mild antimicrobial contribution
  • Fragrance functionality

Known concerns

  • Mild skin sensitization possible at high concentrations
  • Aldehyde reactivity managed by para-substitution

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.