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BENZYL PHENYLACETATE.

Optional CAS 102-16-9 / PERFUMING

An aromatic ester that serves a dual purpose as both a fragrance stabilizer and a skin-softening agent. It is valued in precision skincare for its ability to anchor volatile scent molecules, ensuring a consistent sensory experience while improving the topical texture of the formulation.

Perfuming Fragrance Fixative Skin Conditioning

Science

It functions as a molecular fixative by establishing intermolecular bonds with lighter aromatic compounds, effectively lowering their vapor pressure to prevent rapid evaporation. Additionally, its ester structure provides emollient properties that smooth the skin's surface and enhance the spreadability of lipid-based formulas.


Research

High confidence
Effective range 0.1–2%
Optimal

2%

Key findings

  1. 01 Human patch testing at a 2% concentration demonstrated zero evidence of dermal irritation or allergic sensitization.
  2. 02 UV/Vis spectral analysis confirms a total lack of absorbance between 290-700 nm, classifying the ingredient as non-phototoxic and non-photoallergenic.

Transparency

Not commonly dusted
Min. effective
0.1%
Red flag below
0.01%

As a fragrance fixative, it is technically effective at very low concentrations. However, in luxury skincare, it is rarely 'dusted' for marketing claims; rather, its presence indicates a focus on scent longevity and formulation stability.


The Formula

Solubility
Oil
Optimal pH 5 – 7
0 7 14

Stability

Susceptible to hydrolysis in highly acidic or alkaline environments, which may cause it to break down into benzyl alcohol and phenylacetic acid. It requires protection from extreme thermal energy and direct UV exposure.

Synergies

  • Essential oils
  • Linalool
  • Limonene
  • Lipid-based emollients

Conflicts

  • Strong oxidizing agents
  • Caustic solutions
  • Highly acidic exfoliants (pH < 4.0)

Safety

CIR Status
Not reviewed
Max tested
2%
Pregnancy
Safe
Sensitization risk Low

While not yet formally reviewed by the CIR, it is rigorously assessed by RIFM and holds FDA GRAS status. It is considered safe for topical application within established industry limits.


Your Skin

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

Our Assessment

Optional

A safe and effective aromatic fixative that provides secondary skin-conditioning benefits, best suited for non-sensitive skin types.


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References