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Fragrance

ISOPENTENONE BUTYLENEGLYCOL CYCLIC ACETAL

CAS 53338-05-9
65

Safety score · 0–100

Fine

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

A cyclic acetal fragrance ingredient that delivers fruity aromatic notes. Used at trace levels in perfumes and personal care, it offers stable scent character but counts as part of the product's fragrance allergen risk.

Skin benefits

  • Provides fruity fragrance notes in cosmetic compositions
  • Acetal structure is more stable than free aldehyde alternatives
  • Used at very low percentages, limiting overall exposure
  • Allows perfumers to design distinctive product scents

Known concerns

  • Fragrance materials can trigger contact allergy in some users
  • May contribute to overall fragrance load on the label
  • Limited dedicated dermatological safety data published
  • Not suitable for fragrance free or highly sensitive routines

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, so always read the physical product label and consult a healthcare professional for personal concerns.