COMMON PRESERVATIVE MI/MCI
Methylisothiazolinone and Methylchloroisothiazolinone (MI/MCI) in combination (CAS No. 26172-55-4; CAS No. 2682-20-4) is a common preservative used in various kinds of products, including cosmetics.
MI/MCI RESTRICTION BY HEALTH CANADA
Hotlist (List of Ingredients that are Prohibited and Restricted for Use in Cosmetic Products) was updated by Health Canada at the end of year 2015. In this update, MI/MCI is further restricted the application in cosmetic products. It prohibits the use of MI/MCI in leave-on cosmetic products, and allowed a maximum concentration of 15ppm (0.0015%) in rinse-off cosmetic products.
Health Canada issued a notice on May-10, 2016 to inform consumers the potential risk associated with the use of MI/MCI in combination in certain leave-on cosmetic, non-prescription and natural health products.
ADVICE FROM HEALTH CANADA
Symptoms including red rash, itching, welling, tenderness of skin, scaly skin, blisters etc might be observed if consumers expose to leave-on cosmetic products containing MI/MCI preservative, and/or rinse-off cosmetic products above the permitted concentration level.
Health Canada advised that consumers should check the ingredient list printed on the product labels of leave-on products, for example, cosmetics, non-prescription or natural health products, if the concerned preservative combination is present. Consumers are not suggested to use products containing this preservative if they experience allergenic reaction or sensitivities.
GRACE PERIOD FOR COSMETIC PRODUCTS CONTAINING MI/CMI
The notice mentions, all products containing MI/MCI intended to be used by children under three shall not be made available for purchase after June 14, 2016. All other leave-on products containing this concerned preservative in combination shall not be made available for purchase after December 31, 2016.
ON-GOING MONITORING IN HEALTH CANADA
Health Canada will ongoing monitor the marketplace and will follow up with companies if their products are found to have safety concerns relating to the use of MI/MCI. Compliance and enforcement actions will be taken if necessary.
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1. Hotlist 2015: http://www.hc-sc.gc.ca/cps-spc/cosmet-person/hot-list-critique/hotlist-liste-eng.php
2. Notice published on May 10, 2016: http://healthycanadians.gc.ca/recall-alert-rappel-avis/hc-sc/2016/58290a-eng.php