BIT

Benzisothiazolinone

Safe

Antimicrobial preservative used in rinse-off products. Potent at low concentrations.

Last reviewed April 27, 2026 · Always verify against the current Health Canada Cosmetic Ingredient Hotlist before use.

CAS Number

2634-33-5

Functions

Preservative *

Typical Usage Rate

0.01% - 0.01%

Related ingredients

Phenoxyethanol

Methylparaben

Propylparaben

Ethylhexylglycerin

Sodium Benzoate

Potassium Sorbate

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Regulatory disclaimer

FormulaNorth helps organize cosmetic formulation, label, costing, and CNF preparation information. It is not legal or regulatory advice and does not replace Health Canada guidance, professional regulatory review, or the maker's responsibility to verify product compliance before sale.