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METHYLHEPTADIENONE

CAS 1604-28-0
62

Safety score · 0–100

Fine

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

About

A fragrance ketone listed in EU Annex III, requiring specific concentration limits due to its potential for skin sensitization.

Methylheptadienone is a ketone-based fragrance ingredient subject to EU Annex III restrictions (ref III/178), meaning it requires maximum concentration limits in finished cosmetic products. It has been flagged for potential sensitization and must be declared on the INCI label when present above threshold levels per EU Cosmetics Regulation 1223/2009.

Skin benefits

  • Provides characteristic fragrance to cosmetic products

Known concerns

  • EU Annex III restricted - requires concentration limits
  • Potential skin sensitizer
  • Must be labelled as fragrance allergen above threshold

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.