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2-METHYLPENTYL 2-METHYLVALERATE.

Optional CAS 90397-38-9 / PERFUMING

A multifunctional ester that serves as a gentle fragrance component while delivering lightweight emollient properties. Its branched molecular structure provides a non-greasy skin feel and may enhance the penetration of oil-soluble actives.

fragrance emollient solvent masking

Science

Functions through its ester backbone to impart pleasant fragrance while its branched alkyl chains create a lightweight emollient film. The molecular structure allows it to act as a solvent system, potentially improving the delivery of lipophilic ingredients into the skin barrier.


Research

Medium confidence
Effective range ≤3%
Optimal

N/A

Key findings

  1. 01 Human Repeat Insult Patch Test with 197 participants using read-across material (isoamyl acetate) demonstrated no sensitization potential at declared use concentrations

Transparency

Not commonly dusted

Primarily used as a fragrance component at low concentrations, not typically subject to dusting practices


The Formula

Solubility
Oil
Optimal pH 4 – 7.5
0 7 14

Stability

Ester bonds are vulnerable to hydrolysis under extreme pH conditions, but remain stable within typical skincare pH ranges

Synergies

  • Oil-soluble actives
  • Other fragrance components

Conflicts

  • Strong oxidizing agents
  • Highly alkaline formulations

Safety

CIR Status
Not reviewed by CIR
Max tested
3%
Sensitization risk Low

RIFM assessments confirm non-genotoxic profile and absence of sensitization at current usage levels


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Optional

A well-tolerated multifunctional ingredient that adds subtle fragrance benefits alongside lightweight emollient properties.


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