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Moumoujus

TRANS-2-DECENAL.

Questionable CAS 3913-81-3 / PERFUMING

Trans-2-Decenal is an aldehyde recognized for its potent perfuming properties, imparting a distinct fresh, slightly citrusy, fatty, and green aroma to cosmetic formulations. While it enhances product sensory appeal, this ingredient offers no documented therapeutic benefits to the skin and carries a recognized potential for irritation and sensitization.

Summary

Perfuming Agent

Science

Mechanism of Action

The primary mechanism of Trans-2-Decenal in skincare is limited to its olfactive contribution as a fragrance component. It does not possess documented mechanisms of action that provide therapeutic or functional benefits directly to the skin.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

For optimal stability, Trans-2-Decenal should be refrigerated and stored under an inert atmosphere. Containers must be tightly sealed and kept in a dry, cool, and well-ventilated environment.

Conflicts

  • strong oxidizing agents
  • strong bases
  • excess heat

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
0.001%
Sensitization risk Moderate

The Research Institute for Fragrance Materials (RIFM) has identified Trans-2-Decenal as a potential skin sensitizer, capable of inducing temporary reactions such as redness, bumps, or itching in a subset of individuals upon repeated exposure at higher concentrations. European classifications further denote it as an irritant to both skin and eyes (R 36/38).

Your Skin

Skin Compatibility

No Normal
No Dry
Yes Oily
No Sensitive
Irritancy Medium
Comedogenicity Low

Our Assessment

Verdict

Questionable

Trans-2-Decenal provides no direct skincare benefits and presents a moderate risk of irritation and sensitization, rendering its inclusion in precision skincare formulations questionable despite its aromatic properties.

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