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Moumoujus

2,6,6-TRIMETHYLCYCLOHEXENE-1-CARBALDEHYDE.

Optional CAS 432-25-7 / PERFUMING

A naturally-derived apocarotenoid aldehyde that functions as both a fragrance component and cellular signaling molecule. While primarily used for its pleasant herbal scent profile, emerging research suggests it may support skin's defense mechanisms against photo-oxidative stress through gene expression modulation.

Summary

fragrance antioxidant cellular signaling molecule

Science

Mechanism of Action

Functions as an apocarotenoid messenger that activates cellular detoxification pathways and enhances tolerance to photo-oxidative damage by regulating gene expression, specifically targeting protection against singlet oxygen and reactive oxygen species generated during light exposure.

Research

Clinical Evidence

Medium confidence
Effective range 0.001–2%
Optimal

0.01%

Key findings

  1. 01 RIFM safety assessment at 2.0% concentration showing no skin sensitization concerns with DST of 64 μg/cm²
  2. 02 Biological models demonstrated strongest stress resistance effects at 10 μM concentration for photo-oxidative protection

Transparency

Dusting Analysis

Not commonly dusted

Primarily used as a fragrance ingredient rather than an active skincare component, so dusting practices are not commonly associated with this ingredient.

The Formula

Formulation

Solubility
Oil
Optimal pH 4 – 7
0 7 14

Stability

Highly susceptible to oxidative degradation and requires inert gas storage or antioxidant protection; unstable above pH 8-10 due to aldehyde condensation reactions

Synergies

  • antioxidants
  • inert atmospheric packaging

Conflicts

  • strong oxidizing agents
  • strong bases
  • direct UV exposure
  • oxygen exposure

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
2%
Sensitization risk Low

RIFM and IFRA assessed as non-genotoxic and non-phototoxic with FEMA GRAS status for flavoring applications; no skin sensitization concerns at declared usage levels

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Optional

A well-tolerated fragrance ingredient with emerging potential as a photo-protective antioxidant, though primarily valuable for scent rather than proven skincare benefits.

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