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Moumoujus

ETHYL PERFLUOROBUTYL ETHER.

Avoid CAS 163702-05-4 / SOLVENT

Ethyl Perfluorobutyl Ether functions as a cosmetic solvent and wetting agent, designed to enhance the spreadability and application of skincare products. Its low surface tension and viscosity contribute to a non-greasy skin feel and may support the formation of a water-resistant layer.

Summary

Solvent Wetting Agent

Science

Mechanism of Action

This compound primarily acts as a solvent, facilitating the dissolution and uniform dispersion of other components within a formulation. By virtue of its exceptionally low surface tension, low viscosity, and strong wettability, it serves as an effective wetting agent, improving product spread and reducing friction during application. This mechanism contributes to a smooth, non-greasy feel and may help form a delicate, water-resistant film on the skin's surface, potentially minimizing moisture loss.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

This ingredient exhibits general stability under typical handling and storage conditions. However, it is a volatile substance and decomposes at elevated temperatures, producing toxic byproducts such as hydrogen fluoride and other fluorocarbon organic compounds.

Conflicts

  • strong oxidizing agents
  • acids
  • strong alkalis
  • heat
  • sparks
  • flame

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Moderate

Ethyl Perfluorobutyl Ether is classified as a per- and polyfluoroalkyl substance (PFAS), raising significant concerns regarding its persistence and potential for bioaccumulation in biological systems. The EWG Skin Deep database rates it as 'Unacceptable' for EWG VERIFIED products, highlighting issues such as enhanced skin absorption, high use restrictions, moderate endocrine disruption potential, and moderate non-reproductive organ system toxicity. It is also categorized as an irritant, with a closely related isomer documented to cause both skin and serious eye irritation.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy Moderate
Comedogenicity Unknown

Our Assessment

Verdict

Avoid

Despite its functional attributes in enhancing product texture and spread, Ethyl Perfluorobutyl Ether is a PFAS with documented concerns regarding persistence, bioaccumulation, and potential toxicity, leading to a recommendation for avoidance in precision skincare formulations.

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