Methylisothiazolinone and methylchloroisothiazolinone allergy — news, information, safe products, commentary and scientific research
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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Dos años después de la publicación del exitoso libro en inglés, Living with Methylisothiazolinone Allergy, hoy llega una traducción al español, totalmente actualizada y dirigida a lectores españoles y latinoamericanos. Nombrado ‘Alérgeno del Año’ en 2013, la metilisotiazolinona (MI) es…
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Two years on from the publication of Living with Methylisothiazolinone Allergy, and much delayed due to covid, other time-consuming projects, as well as to under-estimating the volume of work involved in tackling a project of this kind, I’m very happy…
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I have often written about the rarity of finding methylisothiazolinone or methychloroisothiazolinone in bars of soap, and regularly reassure those with isothiazolinone allergies that they are almost certainly safe. No longer. Two Dettol soap bars available in the UK —…
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A new published paper stopped me in my tracks recently — Isothiazolinone Detection in Dish Soap and Personal Care Products: Comparison of Lovibond Isothiazolinone Test Kit and Ultrahigh-Performance Liquid Chromatography-Tandem Mass Spectrometry. There’s an isothiazolinone test kit? Who knew? According to…
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It seems like an appropriate moment to offer some information on the only real story in town at the moment — that of the COVID-19 pandemic — and how it might affect those with ACD, to both MI and other…
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Allergy friendly hair products are the top request I receive from people with sensitivities to the isothiazolinones, and until now, I’ve not covered hair styling products in any detail. So to address that, here is a list I’ve started to…
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In March of 2019, I came across Ecoleaf Hand Soap, produced and marketed by Suma. The ingredients listed benzisothiazolinone as preservative. Benzisothiazolinone is not approved for use as a preservative in cosmetics in the EU. I wrote to Suma to…
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The Cosmetic Ingredients Review Expert Panel have this year been reviewing the safety of the MCI / MI blend, and have just published their Draft Final Amended Report for Panel Review. It’s a beast of a document — it carries…
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