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4-HYDROXY-2-METHOXYBENZALDEHYDE

62

Safety score · 0–100

Fine

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

About

4-hydroxy-2-methoxybenzaldehyde is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.

This aromatic aldehyde (vanillin derivative) is used primarily as a fragrance component. The EU CosIng database flags it with hazard statements for skin/eye irritation (H315/H319), respiratory irritation (H335), and aquatic toxicity (H412). While not banned, it is considered a potential sensitizer and is restricted in leave-on products by some fragrance associations (IFRA). Not listed in EU Annex II or III directly under this name.

Skin benefits

  • Provides pleasant vanilla-like scent to cosmetic formulations

Known concerns

  • Skin and eye irritant (H315, H319)
  • Respiratory irritant (H335)
  • Aquatic toxicity (H412)
  • Potential fragrance allergen
  • Environmental concern due to aquatic toxicity

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.