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trans-2-hexenal

CAS 6728-26-3
45

Safety score · 0–100

Moderate

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

About

Trans-2-hexenal is a cosmetic ingredient used in product formulation. Exercise caution due to limited available safety data.

trans-2-Hexenal (alpha-hexenal) is an alpha,beta-unsaturated aldehyde with strong green, grassy odor characteristics. It is listed in EU Annex III with a restriction limit of 0.002% in finished cosmetic products due to its documented skin sensitization potential. It is also subject to IFRA restrictions as a fragrance allergen. The compound shows moderate aquatic toxicity (H412).

Known concerns

  • Skin sensitizer (EU Annex III restricted, 0.002% limit)
  • Fragrance allergen (IFRA restricted)
  • Aquatic toxicity (H412)

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.