Perfluorodecalin
Perfluorodecalin is a perfluorinated chemical (PFAS-class). PFAS compounds are environmentally persistent, can bioaccumulate, and certain PFAS exposures are associated with adverse human health outcomes.
What it is
Perfluorodecalin is a fully-fluorinated synthetic perfluorocarbon liquid (a 'PFAS').
Medical/industrial use (oxygen carrier, cosmetics); not a food ingredient.
Why it's flagged
- PFAS-class compound; bioaccumulative and linked to adverse health outcomes at sufficient exposure
What regulators actually say
"Per- and polyfluoroalkyl substances (PFAS) are widely used, long lasting chemicals, components of which break down very slowly over time... Current scientific research suggests that exposure to high levels of certain PFAS may lead to adverse health outcomes."
Regulatory status
United States — FDA
Not approved as direct food additive; medical device / cosmetic uses only
European Union — EFSA
Not authorized for food use; PFAS broadly under restriction
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