Is Perfluorooctane Sulfonic Acid vegan?
Perfluorooctane Sulfonic Acid
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.
| Also known as | 220-527-1, 249-415-0, 249-644-6, 274-460-8, 2795-39-3, 29081-56-9, 29457-72-5, 70225-14-8, Ammonium perfluorooctane sulfonate, Diethanolamine perfluorooctane sulfonate, Heptadecafluorooctane-1-sulfonic acid, Lithium perfluorooctane sulfonate, PFOS, Potassium perfluorooctanesulfonate |
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| EC number | 217-179-8 |
| Last reviewed | 10 July 2026 |
An ingredient is considered vegan if it contains no animal-derived components at any point in its production.
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