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Moumoujus

4-METHYL-3-DECEN-5-OL.

Questionable CAS 81782-77-6 / PERFUMING

An oily alcohol compound that serves primarily as a fragrance ingredient with secondary emollient properties. While it provides masking and perfuming benefits in formulations, its skin conditioning effects are minimal due to its unsaturated alcohol structure.

Summary

fragrance perfuming skin conditioning

Science

Mechanism of Action

Functions predominantly through olfactory enhancement, masking unwanted product odors while providing subtle emollient properties through its oily alcohol structure that can temporarily smooth skin texture

Research

Clinical Evidence

Low confidence
Effective range 0.1–1%
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

As a fragrance component with no established skincare benefits, this ingredient offers no advantage for dusting claims

The Formula

Formulation

Solubility
Oil
Optimal pH 3 – 9
0 7 14

Stability

Demonstrates excellent stability in alcoholic systems, soaps, and detergents but degrades rapidly in highly acidic conditions below pH 2 and when exposed to bleaching agents

Conflicts

  • liquid bleach
  • strong oxidizing agents
  • highly acidic formulations

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
1%
Sensitization risk Moderate

RIFM 2024 assessment identifies this as a skin sensitizer with NESIL of 2700 μg/cm². IFRA standards restrict maximum usage levels based on sensitization potential.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Questionable

A fragrance ingredient with sensitization concerns that offers minimal skincare benefits beyond olfactory enhancement.

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