Methylisothiazolinone – EU Labelling and Law

Methylisothiazolinone (MI) and methylchloroisothiazolinone (MCI) must be declared on cosmetics labels when present in the formulation.

(Note that small products may not carry a list of ingredients. In this case, the ingredients must by law be made available at the point of sale – if in store, ask an assistant, and if online, email customer services.)

EU cosmetics labelling laws treats ‘leave on’ products (such as face creams) differently to ‘rinse/wash off’ products (such as shower gels). 

The legalities and processes are complicated, and are under constant under review. 

On 16th April 2016, the MI / MCI blend was banned from leave-on products in the European Union.

On 12th February 2017, MI was banned from leave-on products in the European Union.  

Both MI and the MI / MCI blend are permitted in rinse off products, and this is likely to remain the case in future. 

Removal of the preservatives in leave-on products may help to reduce the number of people becoming sensitised to MI, but will not help those individuals already sensitive to MI – who will have to continue to read ingredients labels carefully. 

For blog posts concerning legislation, click here

For MI-free cosmetic brands, click here, or use the drop-down menu above for cosmetic types. 

By continuing to navigate the site, you agree to the use of cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.