Methylisothiazolinone and Methylchloroisothiazolinone

Product Group : Isothiazolinones

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Description : 

Methylisothiazolinone and methylchloroisothiazolinone are preservatives active against bacteria, yeast and fungi. It is used in the manufacture of water-based cosmetics and personal care products.

Sources of Exposure: Personal care products, cosmetics, home cleaning products, detergents, paper coatings

Health Impacts: Methylisothiazolinone causes skin irritation, allergies, and contact dermatitis. The EU determined it is not safe for the consumer in any leave-on products. Both methylisothiazolinone and methylchloroisothiazolinone are classified as sensitizers and are among the most frequent causes of preservative contact allergy.

Health Concerns 

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