Methylisothiazolinone and methylchloroisothiazolinone allergy — news, information, safe products, commentary and scientific research
I’m delighted to announce the release of the second, expanded and fully updated edition of Living with Methylisothiazolinone Allergy. The second edition is over 20 pages longer than the first (which was published all the way back in 2018), and…
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Purple shampoo is aimed at helping neutralize brassy or yellow-ish tones in blonde or lightened hair, and as I’ve been asked by a number of followers for suggestions which are free from methylisothiazolinone and methylchloroisothiazolinone, here is a round up…
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Although the MI Free Facebook page has remained active during 2025, regular readers will have to forgive absence of activity on the MI Free blog. This has been partly due to taking an extended break from work, and more lately…
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The banning within the last decade of methylisothiazolinone (MI) and methylchloroisothiazolinone (MCI) in leave-on cosmetics (e.g. moisturisers, make-up, deodorants) in Europe, Canada and Australia has seen a reduction in sensitisation and ACD caused by these two preservatives — with no…
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A recent case report published in Contact Dermatitis in August serves as a useful reminder of the grey area between cosmetic products and certain medical products / devices or quasi-cosmetic products — and the potential dangers to those with allergies. The case…
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Given the levels of exposure to cosmetic ingredients which every working hairdresser submits herself to on a daily basis, it’s no surprise that hairdressing is one of the more perilous occupations with respect to allergic contact sensitisation — and severe…
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Confused by sunscreen recommendations? Need yours to be methylisothiazolinone free? Here’s the lowdown — and a list of safe brands. Sun cream: what you need to know Most of us do not apply enough sunscreen to protect us from the…
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Social media is normally the best way to convey urgent messages to the MI-allergy community, and this one has been shared on our Twitter page already. But as it’s a children’s product, and also specific to the UK (and US),…
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Benzisothiazolinone (BIT), like its better known ‘siblings’ methylisothiazolinone (MI) and methylchloroisothiazolinone (MCI), is a member of the ‘isothiazolinone’ group of highly effective preservatives, which between them have contributed towards a worldwide epidemic of allergic contact dermatitis in recent decades. In…
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The MI Free website has been neglected of late, with a lack of regular posts and some key pages in need of update, but I hope subscribers and long-standing readers will forgive me when they learn the reason — that…
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