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Moumoujus

BENZYL FORMATE.

Optional CAS 104-57-4 / PERFUMING

A versatile ester primarily utilized for its aromatic profile, offering distinct floral and fruity notes reminiscent of cherry and raspberry. Beyond scent, it serves as a specialized solvent and carrier, often employed to stabilize and deliver active ingredients in targeted skincare formulations.

Summary

Perfuming Solvent Penetration enhancer

Science

Mechanism of Action

Benzyl Formate functions as a fragrance component and a lipophilic solvent with a LogP of 1.79. Its structural properties allow it to act as a penetration enhancer, effectively solubilizing solid actives like benzoyl peroxide to improve their distribution within the skin's lipid matrix.

Research

Clinical Evidence

Medium confidence
Effective range 0.1–5%
Optimal

5%

Key findings

  1. 01 Human patch testing confirmed a lack of irritation or sensitization potential even at concentrations doubling standard usage levels.

Transparency

Dusting Analysis

Commonly dusted
Min. effective
0.1%
Red flag below
0.05%

Because it is primarily a fragrance and solvent, it is often included at negligible levels (below 0.1%) simply to mask base odors rather than to provide functional solvent benefits.

The Formula

Formulation

Solubility
Oil
Optimal pH 4 – 8
0 7 14

Stability

Highly stable up to 80°C within a moderate pH range; however, it is susceptible to hydrolysis, reverting to benzyl alcohol and formic acid if exposed to extreme acidity or alkalinity.

Synergies

  • Benzoyl Peroxide
  • Lipophilic active ingredients

Conflicts

  • Strong oxidizing agents
  • Strong acids
  • Strong bases

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

While CIR hasn't reviewed it, the Expert Panel for Fragrance Safety (RIFM) and the FDA (GRAS status) recognize it as safe for use in consumer products and food.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Optional

A safe and effective aromatic solvent that is useful for enhancing the texture and penetration of specific actives, though it offers limited direct biological benefit to the skin.

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References

Sources