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Moumoujus

3-METHYL-3-OCTYL ACETATE.

Optional CAS 66008-65-9 / PERFUMING

A synthetic fragrance ester that delivers a distinctive scent profile to cosmetic formulations without providing therapeutic skin benefits. This oil-soluble perfuming agent functions purely in a sensorial capacity, contributing to product experience through fragrance rather than skin treatment.

Summary

perfuming

Science

Mechanism of Action

Functions exclusively as an olfactory component by providing fragrance molecules that create specific scent characteristics in formulations, with no biological activity on skin cells or dermal processes.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

As a fragrance component without therapeutic claims, dusting analysis is not applicable to this ingredient

The Formula

Formulation

Solubility
Oil
Optimal pH 4 – 8
0 7 14

Stability

Susceptible to ester hydrolysis in extreme pH conditions below 3.0 or above 9.0, which releases acetic acid and 3-methyl-3-octanol, compromising scent integrity

Conflicts

  • Strong oxidizing agents
  • Strong acids
  • Strong bases

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Low

Regulated under IFRA standards for fragrance materials and listed in EU CosIng database as perfuming agent, not among the 26 allergens requiring mandatory labeling

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Optional

A functional fragrance ingredient that enhances sensory experience without contributing therapeutic value to precision skincare formulations.

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