What it is
Methylchloroisothiazolinone belongs to a group of compounds called Isothiazolinones.
What it does
Methylchloroisothiazolinone is a preservative: it protects products from the growth of fungi, bacteria and yeast, thus prolonging their shelf life.
Side effects
Methylchloroisothiazolinone is an irritant and a strong allergen. Because of that, it is mostly used, in small concentrations, in rinse-off products so the chances of it causing negative reactions are much smaller.







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Why kinds of things would you find this in?
.-= Trisha´s last blog ..Ultimate Beauty Day 4: Try Something New Today =-.
Trisha, this preservative can be found pretty much in all kind of products: makeup, skincare, shampoos, bath products and suntan products.
I’m searching for beauty products that DO NOT contain Isothiazolinones and having a difficult time. Do you know of any websights that would list such products?
Sheri, unfortunately I don’t know such websites but I know that some online retailers like drugstore.com and ulta.com list the ingredients of most of the products they sell. You can just search for a product you’re interested in buying on there and see if it contains Isothiazolinones. I’m sorry I couldn’t be of more help.