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STYRYL ACETATE

CAS 10521-96-7
55

Safety score · 0–100

Moderate

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

About

An acetate ester of cinnamyl alcohol providing a sweet balsamic-honey fragrance; documented skin sensitizer requiring concentration limits under IFRA guidelines.

Styryl acetate (cinnamyl acetate) is an aromatic ester found naturally in several essential oils and valued for its sweet, balsamic, slightly honey-like scent. It is classified as a fragrance allergen and is listed on EU Annex III, requiring mandatory labeling above 0.001% in leave-on products. IFRA recommends restrictions on use levels due to documented skin sensitization potential in human and animal studies.

Skin benefits

  • Sweet balsamic fragrance
  • Provides warm honey notes in cosmetic formulations

Known concerns

  • EU Annex III fragrance allergen requiring declaration
  • Documented skin sensitizer
  • IFRA use concentration limits apply

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.