Science
Mechanism of Action
This ingredient functions as a specialized film-former and skin-conditioning agent. Its perfluorinated molecular structure establishes a hydrophobic and oleophobic shield; this barrier prevents natural sebum and external moisture from emulsifying or degrading cosmetic pigments, effectively 'locking' products in place for extended wear without sacrificing skin breathability.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
While it lacks extensive clinical bioactivity data, it is used at low concentrations for functional performance. If present in 'long-wear' claims at negligible levels (under 0.1%), it may be considered a label-only addition as its film-forming efficacy is concentration-dependent.
The Formula
Formulation
Stability
Extremely chemically inert and resistant to oxidative or pH-induced degradation due to the high energy of carbon-fluorine bonds.
Synergies
- Silicone-based elastomers
- Hydrocarbon-based waxes
Conflicts
- Purely aqueous systems
- Non-fluorophilic bases without bridge stabilizers
Safety
Safety Profile
Identified as a PFAS (per- and polyfluoroalkyl substance), raising significant concerns regarding environmental persistence and bioaccumulation. It is currently on the EWG Unacceptable List and is restricted by several major global retailers.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While technically effective for long-wear performance, its classification as a persistent PFAS and lack of safety data make it incompatible with modern clean chemistry standards.
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