Science
Mechanism of Action
This ingredient functions by creating durable, low-surface-energy coatings on surfaces, effectively repelling both water and oils. In skincare and cosmetic applications, it contributes to a smoother skin and hair feel, potentially adding shine, and can act as a binding or anti-caking agent to improve product consistency and texture.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ingredient is sensitive to moisture and will react slowly with water, suggesting instability in aqueous formulations. For optimal stability, it should be stored in a dark, dry environment.
Conflicts
- water
- moisture
Safety
Safety Profile
PERFLUOROOCTYLETHYL TRIMETHOXYSILANE is classified as a Per- and Polyfluoroalkyl Substance (PFAS), a chemical class of significant concern. The FDA has reported insufficient safety data for 19 out of 25 common PFAS types in cosmetics. A similar PFAS, perfluorohexylethyl triethoxysilane, raised potential safety concerns in body lotion at its highest concentration. General PFAS have been linked to serious health issues including thyroid disruption, reproductive toxicity, developmental toxicity, and immunotoxicity in both humans and animals.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Due to its classification as a PFAS and the associated significant safety concerns regarding human health and insufficient regulatory review, this ingredient should be avoided in precision skincare formulations.
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