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Moumoujus

2-DIMETHYLCYCLOHEXENYL-5-METHYL-5-METHYLPROPYL-1,3-DIOXANE.

Avoid CAS 117933-89-8 / PERFUMING

A synthetic fragrance compound that delivers dry, radiant woody-amber notes to cosmetic formulations. This ingredient has been classified as a Substance of Very High Concern and is prohibited in EU cosmetics as of August 2023 due to environmental persistence and bioaccumulation concerns.

Summary

perfuming

Science

Mechanism of Action

Functions purely as a fragrance ingredient with no therapeutic skin benefits, providing olfactive enhancement through its distinctive woody-amber scent profile while contributing to the overall sensory experience of skincare products.

Research

Clinical Evidence

Low confidence
Effective range ≤0.3%
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

This ingredient serves no skincare function beyond fragrance and is prohibited in major markets, making dusting unlikely.

The Formula

Formulation

Solubility
Oil
Optimal pH 2 – 11
0 7 14

Stability

Demonstrates exceptional chemical stability across pH 2-11 range, maintaining integrity in alkaline conditions up to pH 10.5

Conflicts

  • Strong oxidizing agents
  • Bleach (causes mild degradation)

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
0.3%
Sensitization risk Moderate

Prohibited in EU cosmetics since August 27, 2023, under SVHC classification. Pure substance may cause skin irritation (H315) and allergic reactions (H317) at full concentration.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Avoid

A fragrance ingredient with no skincare benefits that is prohibited in major markets due to environmental concerns.

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