Science
Mechanism of Action
As a fluorinated-side-chain polymer, it functions by lowering the surface energy of the cosmetic film. This creates a microscopic barrier that repels both aqueous and lipid-based substances, effectively preventing product migration (transfer) while simultaneously enhancing the viscosity and structural integrity of the oil phase.
Research
Clinical Evidence
Low confidenceN/A
Key findings
- 01 2018 CIR Safety Assessment of Polyfluorinated Polymers noting its use for barrier-forming and long-wear properties.
Transparency
Dusting Analysis
This ingredient is typically used for structural and performance enhancement rather than active biological benefit; however, its status as a PFAS substance makes any concentration a point of regulatory scrutiny.
The Formula
Formulation
Stability
Highly stable within standard cosmetic pH ranges and non-aqueous systems; used to provide structure to the lipid phase.
Synergies
- Hydrophobic pigments
- Isododecane
- Silicone resins
Conflicts
- Highly polar aqueous systems
- Clean beauty standards
- PFAS-restricted formulations
Safety
Safety Profile
Classified as a PFAS (per- and polyfluoroalkyl substance). The CIR Expert Panel requires further data on manufacturing impurities and sensitization at maximum use levels. It is currently facing phase-out in various global regions including the EU.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While effective for long-wear performance, its classification as a PFAS and the lack of sufficient safety data make it incompatible with modern precision skincare standards.
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Similar Ingredients
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References
Sources