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Benzisothiazolinone
Benzisothiazolinone
Banned
Benzisothiazolinone is a known skin sensitizer and is not authorised as a food preservative in the US or EU. EU prohibits its use in leave-on cosmetic products and restricts rinse-off levels.
Found in
42 products
What it is
1,2-benzisothiazol-3(2H)-one (BIT), a synthetic biocide/preservative.
Industrial/cosmetic preservative — NOT an approved food preservative.
Why it's flagged
- potent skin sensitizer
- not a food ingredient
What regulators actually say
"Benzisothiazolinone listed as Annex V preservative restricted to rinse-off cosmetic products at 0.0“05%."
"BIT is a contact allergen and skin sensitizer."
Regulatory status
United States — FDA
Not approved as food additive.
European Union — EFSA
Not authorised as food preservative; restricted in cosmetics (EU 1223/2009 Annex V).
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