Perfluorohexylethyl Triethoxysilane
INCI: Perfluorohexylethyl Triethoxysilane | Function: Surface Treatment | Type: Fluorinated Silane
What Is Perfluorohexylethyl Triethoxysilane?
Perfluorohexylethyl Triethoxysilane (CAS 51851-37-7) 是一种氟化硅烷表面处理剂，全氟己基版本（碳链比辛基短）。用于处理彩妆粉体，提供疏水疏油性和丝滑触感。较全氟辛基版本环境持久性略低。
Key Skin Benefits
- + Water/Sebum Resistance — 氟化处理提供双重防护
- + Enhanced Long-wear — 提升彩妆持久度
Pros
- + Excellent surface treatment for cosmetic powders
- + Provides both hydro- and oleophobic properties
Cons
- − PFAS compound — environmental persistence concern
- − Surface treatment — not a leave-on active ingredient
- − Regulatory risk under evolving PFAS restrictions
Specifications
| Property | Value |
|---|
| Usage Areas | Face, Eye, Body |
| Product Type | Leave-On |
| Source | Synthetic |
| Natural Level | Synthetic |
Safety Ratings
| Metric | Rating |
|---|
| Skin Sensitivity | 2/5 |
| Comedogenic Rating | 0/5 |
| EWG Score | 3/10 |
Regional Regulatory Limits
| Region | Leave-on % | Rinse-off % | Status |
|---|
| EU (CosIng) | Under review | Under review | PFAS restriction pending |
| US (CIR/FDA) | No limit | No limit | Minimal use |
| Japan (MHLW) | No limit | No limit | Allowed |
| ASEAN | No limit | No limit | Allowed |
| China (NMPA) | Not specified | Not specified | Rarely used |
Typical Usage % by Product Type
| Product Type | Typical % |
|---|
| Powder Treatments | 0.5–3% |
References
- CosIng Database — Perfluorohexylethyl Triethoxysilane. https://ec.europa.eu/growth/tools-databases/cosing/
- ECHA (2023) — PFAS restriction. https://echa.europa.eu/
- EWG Skin Deep. https://www.ewg.org/skindeep/