MIT
Methylisothiazolinone
Preservative restricted to rinse-off products only. Prohibited in leave-on cosmetics.
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) in rinse-off products only. PROHIBITED in leave-on products including wet wipes.
Product type restriction: Rinse-off products only
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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.