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SODIUM PERFLUOROHEXYL ETHYLPHOSPHONATE.

Questionable CAS 1189052-95-6 / NOT REPORTED

SODIUM PERFLUOROHEXYL ETHYLPHOSPHONATE is an amphiphilic surface-active agent engineered to create low-energy surfaces, providing robust water and oil repellency. It also serves as a conditioning agent for skin and hair, influencing product texture and consistency for enhanced feel.

Summary

Surface-active agent Hydrophobic agent Oleophobic agent Conditioning agent Consistency and texture enhancer Chelating agent

Science

Mechanism of Action

This ingredient functions as an amphiphilic surface-active agent due to its distinct structural components. The perfluorohexyl chains impart strong hydrophobic and oleophobic characteristics by forming low-energy surfaces, effectively repelling both water and oil. Conversely, its phosphonic acid group contributes hydrophilic properties. Additionally, it acts as an effective chelating agent, capable of binding to di- and trivalent metal ions to prevent unwanted scale formation and suppress catalytic activity within formulations.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH 1 – 12
0 7 14

Stability

The ingredient exhibits surface activity and maintains stability across a broad pH range from 1 to 12. Its amphiphilic structure, comprising hydrophobic/oleophobic perfluorohexyl chains and a hydrophilic phosphonic acid group, ensures compatibility within both aqueous and oil phases.

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) Expert Panel has not specifically reviewed SODIUM PERFLUOROHEXYL ETHYLPHOSPHONATE. It falls under the broader category of 'Polyfluorinated Polymers', which received an 'Insufficient Data' conclusion, indicating a lack of comprehensive safety data. The Scientific Committee on Consumer Safety (SCCS) has not reviewed this ingredient. The U.S. FDA acknowledges this ingredient as a Per- and Polyfluoroalkyl Substance (PFAS) and expresses concerns, noting that while no federal prohibition currently exists, this position may change with emerging scientific evidence. The Modernization of Cosmetics Regulation Act of 2022 (MoCRA) mandates an FDA assessment of PFAS in cosmetic products by December 29, 2025.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Questionable

While offering notable surface-active, conditioning, and texture-enhancing properties, its classification as a PFAS with ongoing FDA safety concerns and 'Insufficient Data' from CIR warrants a cautious approach in precision skincare formulations.

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