CMIT (in CMIT/MIT blends)
Methylchloroisothiazolinone
Often supplied as Kathon CG — a 3:1 blend of CMIT and MIT. Same rinse-off-only restriction as MIT alone. Source: Health Canada Cosmetic Ingredient Hotlist (restricted list), compiled from docs/cosmetic-ingredient-database.json. Verify against the live canada.ca Hotlist before relying on it.
Last reviewed April 27, 2026 · Always verify against the current Health Canada Cosmetic Ingredient Hotlist before use.
Health Canada Hotlist — Restricted
Max concentration: 0%
Maximum 0.0015% (15 ppm) of a 3:1 mixture of CMIT and MIT in rinse-off products only. PROHIBITED in leave-on.
Product type restriction: Rinse-off products only
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