Is PFOS vegan?

Perfluorooctane Sulfonic Acid is also known as PFOS.

Perfluorooctane sulfonic acid (PFOS) and its salts (potassium, diethanolamine, ammonium, lithium) are synthetic fluorosurfactants historically used for water- and stain-repellent applications. They are man-made perfluorinated chemicals with no natural or animal origin, though they are now heavily restricted due to environmental persistence and toxicity.

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