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Moumoujus

4-TERT-BUTYLDIHYDROCINNAMALDEHYDE.

Optional CAS 18127-01-0 / PERFUMING

An aromatic aldehyde fragrance compound that delivers a distinctive fresh, floral lily-of-the-valley scent to skincare formulations. Known by its trade name Bourgeonal, this molecule functions as an olfactory receptor agonist but serves exclusively as a fragrance ingredient in topical applications.

Summary

fragrance

Science

Mechanism of Action

Acts as a potent agonist for the hOR17-4 human olfactory receptor, providing sensory enhancement through its characteristic fresh and floral fragrance profile without direct skin benefits.

Research

Clinical Evidence

Medium confidence
Effective range ≤0.414%
Optimal

0.12%

Key findings

  1. 01 Human maximization testing demonstrated no sensitization reactions at 4140 μg/cm² exposure levels

Transparency

Dusting Analysis

Not commonly dusted

Strict IFRA regulations and concentration limits make dusting unlikely and easily detectable

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Highly air-sensitive aldehyde requiring inert atmosphere storage and sealed containers to prevent oxidation

Conflicts

  • Strong oxidizing agents
  • Strong bases
  • Air exposure

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
0.12%
Pregnancy
Caution
Sensitization risk Moderate

IFRA-regulated with category-specific limits: 0.029% for facial products, 0.12% for body applications. ECHA flags potential fertility concerns.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Optional

A regulated fragrance ingredient suitable for non-sensitive skin types when used within strict concentration limits.

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