Methylisothiazolinone

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Where is Methylisothiazolinone found?

This substance is a preservative used in personal hygiene products (such as shampoos, lotions, emulsions, and sun screens), and in industrial cooling oils, cutting oils, and paper finishes. It is also commonly added to household cleaners as a substitute for formaldehyde. This substance is a component in Kathon and Grotan preservatives.

How can you avoid contact with Methylisothiazolinone?

Avoid products that list any of the following names in the ingredients:

• 4-Isothiazolin-3-one, 5-chloro-2-methyl-
• 5-Chloro-2-methyl-4-isothiazolin-3-one
• Methylchloroisothiazolinone
• 3(2H)-Isothiazolone, 5-chloro-2-methyl-
• BRN 1210149
• EINECS 247-500-7
• Kathon CG 5243

What are some products that may contain Methylisothiazolinone?

A clinician's point of view.

Methlisothiazolinone is also used in air fresheners such as Glade Premium Room Spray, and may be a preservative component of a product. Specifically methlisothiazolinone can be found in cleansers such as liquid dish soap, liquid laundry soap, all purpose spray cleaners and window cleaning solutions. This substance can also be found in products labeled "natural". Corporations trying to sell "green" (but not so green) cleaners often use this as a preservative.

Additional resources and links for Methylisothiazolinone.

To submit resources or links, please fill out the submission form at the top of this page.

For additional information about products that might contain Methylisothiazolinone, visit the Consumer Product Information Database. These lists are brief and provide just a few examples. They are not comprehensive. Product formulations also change frequently. Read product labels carefully and talk to your doctor if you have any questions. These are general guidelines. Talk to your doctor for more specific instructions.