Methylisothiazolinone allergy information. Products free from all isothiazolinone preservatives, including household & cosmetics. Edited by @FreeFromWriter
Joined January 2016
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9 Photos and videos
Pinned Tweet
3 Dec 2025
Newly updated and expanded for 2026!
The second edition of Living with Methylisothiazolinone Allergy is now out.
mi-free.com/living-with-mi-a…
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The first in what will be a regular series of first-person accounts of living with methylisothiazolinone allergy. #skinallergy #ACD #contactdermatitis
Isobel's Story: mi-free.com/isobels-story/
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Methylisothiazolinone Free retweeted
Sun Bum.
Markets itself as the clean choice. Still contains homosalate, octocrylene, and methylisothiazolinone.
That last one is an allergen the EU banned from leave-on products.
Source: EU SCCS Opinion on MI, 2014
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Isothiazolinone-free Rinse Aids.
mi-free.com/rinse-aids/
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Swedish paper concluding that “present regulation of BIT in consumer products does not protect consumers against either sensitisation or allergic contact dermatitis to BIT [benzisothiazolinone]”
onlinelibrary.wiley.com/doi/…
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They didn't clarify.
You might want to clarify that methylisothiazolinone is banned in UK (and EU) cosmetic creams, including sun creams, to spare readers the concern over it. @HuffPostUKLife
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Dishwashing liquids often contain methylisothiazolinone or benzisothiazolinone. Are residues on tableware potential allergy triggers?
mi-free.com/are-dish-soap-re…
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NEW: Toilet paper recommendations from the isothiazolinone-allergy community.
mi-free.com/toilet-paper/
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Methylisothiazolinone Free retweeted
Feb 10
A new Facebook page dedicated to Allergic Contact Dermatitis, including metal allergies, preservative allergies and fragrance allergies. #skinallergy
facebook.com/NewsACD
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Could isothiazolinone allergy symptoms be triggered by exposure through the diet due to pesticide residues, transfer from paper packaging, or detergent residues on food production lines? #methylisothiazolinone #benzisothiazolinone
mi-free.com/food-scd-and-mi/
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New Facebook page dedicated to Allergic Contact Dermatitis: facebook.com/NewsACD
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19 Dec 2025
Including possible children's make-up kits containing MCI/MI (Kathon CG) ... #contactdermatitis
🚨 Unsafe toys, makeup and electricals are entering the UK. Risks include choking, harmful chemicals and electric shock.
🔍Check safety marks and buy from trusted retailers.
👉Read CTSI's full article: bit.ly/4aJvW6
#ChristmasProductSafety
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17 Dec 2025
Methylisothiazolinone, along with Ni and Cu, top allergens amongst children and young people.
2 Dec 2025
Pediatric Contact #Allergy: 2011–2022 Insights 🧪
* Contact sensitization still common: 29.3% of children/adolescents
* Highest rates in youngest (1–5 yrs): 34.3%
* Top #allergens in young kids: Nickel, MI, Cobalt, HEMA
* Teens show spike in PPD sensitization
🌍 Regional differences remain (e.g., higher nickel in NE Europe)
📌 Takeaway: Allergen patterns are shifting - ongoing monitoring is key for #prevention and #PublicHealth.
🔗 doi.org/10.1111/pai.70245
#pai_journal #contactsensitization #contactallergy #originalarticle
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18 Nov 2025
Book news ... Including a new one on Propylene Glycol allergy, and a new updated version of Living with MI Allergy coming in early 2026.
mi-free.com/three-pieces-of-…
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18 Nov 2025
French recall due to MI in a leave-on skincare product (illegal in EU).
14 Nov 2025
#RappelProduit Under Eye Serum Even & Clear 15ml - AMBI Risques : Risque chimique Motif : Produit cosmétique ne respectant pas le règlement (CE) 1223/2009 car il contient de la méthylisothiazolinone (MIT), conservate ... rappel.conso.gouv.fr/fiche-r…
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Methylisothiazolinone Free retweeted
10 Oct 2025
Cross-reactivity of isothiazolinone derivatives causing allergic contact dermatitis @MatthewBowdish
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Methylisothiazolinone Free retweeted
10 Oct 2025
Since February 2025, we have consistently utilized 2-n-Octyl-4-isothiazolin-3-one a.k.a. #octylisothiazolinone #OIT 0.1% pet, as part of the European Comprehensive Baseline Patch Series. @MatthewBowdish
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Methylisothiazolinone Free retweeted
10 Oct 2025
Are your headphones making you itch? That could be due a newly identified contact allergen called Octylisothiazolinone (OIT). Link below.
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Methylisothiazolinone Free retweeted
⚠️ Product Recall: Toy Make-Up Kits (2505-0086) presenting a serious chemical risk as the nail varnishes included in each kit contain methylisothiazolinone, which is not permitted for use in leave-on products due to skin sensitisation concerns.⚠️
gov.uk/product-safety-alerts…
#UkRecallsAndAlerts #ProductRecall
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