Film Former
PERFLUORONONYLETHYL STEARYL DIMETHICONE
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A dimethicone carrying both a stearyl chain (for emolliency) and a C9 perfluoroalkyl-ethyl chain (for water-and-oil repellency). The PFAS tail is the issue: long-chain PFAS chemistry sits squarely in ECHA's proposed cosmetic phase-out.
Function
Skin benefits
- Combines stearyl emolliency with PFAS repellency
- Long-wear smooth-feel films
- Highly stable in finished product
Known concerns
- C9 perfluoroalkyl chain is long-chain PFAS
- ECHA REACH restriction scope captures this class
- Persistent and bioaccumulative
- EU cosmetic phase-out expected
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related film formers
Check your shelf
Find PERFLUORONONYLETHYL STEARYL DIMETHICONE in your products.
Scan any cosmetic product with LuxSense to see if it contains PERFLUORONONYLETHYL STEARYL DIMETHICONE and get a full ingredient breakdown with safety scores.
This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.