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Fragrance

CIS-4-HEPTENAL

CAS 6728-31-0
55

Safety score · 0–100

Moderate

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

An unsaturated aldehyde used as a fragrance note (creamy, fatty smell). Like most aldehydes it can irritate skin and eyes, so it is used at very low levels in cosmetics.

Function

PERFUMING

Skin benefits

  • Adds creamy-fresh fragrance note at trace levels
  • Naturally occurs in dairy/fruit aromas
  • Effective at very low use levels

Known concerns

  • Aldehyde — potential skin and eye irritant
  • Fragrance allergen risk for sensitive skin
  • Very low use limits required

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.