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Moumoujus

A-TERPINYL ACETATE.

Optional CAS 80-26-2 / PERFUMING

A naturally-occurring ester that serves dual functions in skincare formulations as both a fragrance component and antimicrobial agent. Known for its stability across varying pH levels and ability to disrupt fungal cell membranes, making it particularly useful in products targeting microbial concerns. This ingredient bridges aromatic profiles while providing functional benefits beyond scent enhancement.

Summary

perfuming antimicrobial preservative enhancer

Science

Mechanism of Action

Functions by disrupting microbial cell membranes, specifically targeting dermatophytes and fungi including Aspergillus and Trichophyton species. The ester structure allows for sustained release and stability, while its antimicrobial properties help maintain product integrity and may support skin microbiome balance.

Research

Clinical Evidence

Medium confidence
Effective range 0.25–10%
Optimal

1%

Key findings

  1. 01 Demonstrated superior antifungal activity against dermatophytes at 0.25-1.0 μL/mL, outperforming itraconazole controls in select assays
  2. 02 HRIPT studies confirmed no sensitization in majority of volunteers at concentrations up to 10% in fragrance applications

Transparency

Dusting Analysis

Not commonly dusted

Primarily used as functional fragrance component rather than marketing ingredient, making dusting unlikely

The Formula

Formulation

Solubility
Oil
Optimal pH 4 – 9
0 7 14

Stability

Exceptional alkaline stability up to pH 9, superior to other acetate esters like linalyl acetate. Requires alcohol or oil-based systems for solubilization.

Synergies

  • citrus oils
  • lavender extracts
  • other terpene derivatives

Conflicts

  • strong oxidizing agents

Safety

Safety Profile

CIR Status
Safe as used
Max tested
25%
Sensitization risk Low

IFRA guidelines specify product-specific limits: 1.0% for leave-on products like body lotions, up to 25.0% in fine fragrances. CIR assessment via citrus-derived ingredients report confirms safety when formulated appropriately.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Optional

A stable, multifunctional ingredient offering both fragrance and antimicrobial benefits, though primarily valuable for scented formulations rather than core skincare efficacy.

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References

Sources