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Moumoujus

10-UNDECENYL ACETATE.

Optional CAS 112-19-6 / PERFUMING

A fatty ester compound that functions primarily as a skin-conditioning emollient and fragrance component. While structurally related to antifungal undecylenic acid, this acetate form serves mainly to improve skin texture and provide moisture barrier protection. Its high lipophilicity makes it useful for enhancing penetration of oil-soluble ingredients.

Summary

Emollient Skin conditioning agent Fragrance component Penetration enhancer

Science

Mechanism of Action

Forms a protective lipophilic film on the stratum corneum to reduce transepidermal water loss and smooth skin texture. The ester may undergo slow hydrolysis by skin esterases to release 10-undecen-1-ol, which has mild antimicrobial properties, though this is not its primary function.

Research

Clinical Evidence

Low confidence
Effective range 0.1–8%
Optimal

1%

Key findings

  1. 01 Demonstrates skin conditioning and emollient properties with enhanced skin texture improvement

Transparency

Dusting Analysis

Not commonly dusted
Min. effective
0.1%
Red flag below
0.05%

Rarely used in trace amounts for dusting due to its distinct fatty, rose-like odor that can affect product scent profile even at low concentrations

The Formula

Formulation

Solubility
Oil
Optimal pH 4 – 7.5
0 7 14

Stability

Most stable in slightly acidic to neutral environments; susceptible to hydrolysis at extreme pH levels, particularly above pH 8.0 where saponification occurs

Synergies

  • Caprylic/Capric Triglyceride
  • Isopropyl Myristate
  • Other oil-soluble actives

Conflicts

  • Strong bases
  • Strong oxidizing agents
  • Highly alkaline formulations

Safety

Safety Profile

CIR Status
Not specifically reviewed by CIR; included in broader alkyl ester group assessments deemed safe as used
Max tested
8%
Pregnancy
Safe
Sensitization risk Low

FDA-approved as food flavoring agent; recognized by RIFM for fragrance safety with NESIL of 1500 μg/cm². Non-genotoxic and non-photoirritant.

Our Assessment

Verdict

Optional

A functional emollient with limited clinical data for therapeutic benefits, best suited for texture enhancement and fragrance applications.

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References

Sources