Film Former
TRIFLUOROPROPYL CYCLOPENTASILOXANE
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A fluorinated cyclic silicone. Great feel but fluorinated chemistry is increasingly scrutinised under PFAS restrictions — use with caution.
Trifluoropropyl cyclopentasiloxane (a D5-type cyclic silicone bearing trifluoropropyl substituents) is used in long-wear makeup and hair products for its fast spreading and unique gloss. It combines two families that face growing regulatory scrutiny: cyclosiloxanes (D4/D5 restricted in the EU for wash-off cosmetics since 2020) and fluorinated organics within the broader PFAS landscape. While this specific CAS is not yet individually restricted, the EU's universal PFAS proposal under REACH (2023) and the ongoing D5 restrictions make its future use uncertain. Low acute toxicity; environmental persistence is the dominant concern.
Function
Skin benefits
- Very fast spreading, non-greasy silicone feel
- Unique film and gloss properties
- Works well in long-wear cosmetics
Known concerns
- Fluorinated silicone — persistence concerns (PFAS-adjacent chemistry)
- Limited public toxicology data
- EU moves to restrict PFAS-family compounds
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related film formers
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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.