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Fragrance ingredient

ALPHA-IONOL

CAS 25312-34-9
62

Safety score · 0–100

Fine

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

Alpha-ionol is a synthetic fragrance molecule with a soft, woody-violet scent used in perfumed cosmetics. It carries some allergen labelling under EU rules but is generally considered acceptable at the low levels used in finished products.

Skin benefits

  • Provides a violet, floral fragrance note in cosmetic formulations
  • Used at low levels as a perfume ingredient
  • Functions as part of complex fragrance accords

Known concerns

  • Listed as an established fragrance allergen under EU labelling rules
  • May trigger skin sensitisation in predisposed users
  • Provides no skin benefit beyond scent

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Related fragrance ingredients

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.