Methylisothiazolinone
Methylisothiazolinone is a preservative ingredient. It’s in 375 products on Poliage, most often conditioner, shampoo and body wash. Avoid lists on Poliage that include it: none.
Updated October 22, 2026
In plain English
A synthetic preservative used in small amounts in water-based products.
What it does
Contains Methylisothiazolinone: preservative
Function listed in CosIng
Source: CosIng, the European Commission cosmetic ingredient database, ref 35341, accessed October 22, 2026. Also listed as mit and kathon cg.
Products that contain Methylisothiazolinone
Head & Shoulders
Classic Après-Shampooing
Lists fragrance, fragrance allergens, silicones
Clay Mask
Lists fragrance, fragrance allergens, essential oils, formaldehyde releasers
Mrs. Meyers
Clean Day Dish Soap Refill
Lists fragrance, sulfates
Unilever
Cleanse
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, formaldehyde releasers, coconut derivatives
Kenra Professional
Clear Gloss
Lists fragrance, fragrance allergens, sulfates, silicones, formaldehyde releasers
Adidas
Climacool
Lists fragrance, fragrance allergens, sulfates, chemical UV filters
Adidas
Climacool body hair face
Lists fragrance, fragrance allergens, sulfates, chemical UV filters, coconut derivatives
Walgreens
Clinical Strength Dandruff Shampoo
Lists fragrance, sulfates, silicones, coconut derivatives
Clinique
Clinique For Men Charcoal Face Wash
Lists coconut derivatives
Buttah Skin
Coco Shea Body Wash
Body wash · Lists fragrance, fragrance allergens, coconut derivatives
Sedal
Colágeno + Vitamina C
Lists fragrance, fragrance allergens, exfoliating acid, silicones
Hair Biology
Color brilliance conditioner
Conditioner · Lists fragrance, fragrance allergens, silicones
Dove
Color Care Conditioner
Conditioner · Lists fragrance, fragrance allergens, exfoliating acid, silicones
Unilever
Color Care Shampooing au sérum réparateur
Lists fragrance, fragrance allergens, sulfates, silicones, formaldehyde releasers, coconut derivatives
Herbal Essences
Color Me Happy Conditioner
Conditioner · Lists fragrance, fragrance allergens, silicones
Herbal Essences
Color Me Happy Shampoo
Shampoo · Lists fragrance, sulfates, coconut derivatives
Colorsilk
Colorsilk Beautiful Color - 32 Acajou foncé
Lists fragrance, drying alcohol, sulfates, parabens, silicones, coconut derivatives
Pantène
Colour Protect
Lists fragrance, fragrance allergens, silicones
Unilever
Condicionador Dove Óleo de Nutrição
Lists fragrance, fragrance allergens, exfoliating acid, silicones
Tresemme
Conditioner
Lists fragrance, fragrance allergens, exfoliating acid, silicones
Herbal Essences
Conditioner
Lists fragrance, fragrance allergens, drying alcohol, silicones, coconut derivatives
Unilever
Couleur Eclat
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, formaldehyde releasers, coconut derivatives
Kenra Professional
Curl Defining Creme 5
Hair styling · Lists fragrance, parabens, silicones
Dove
Curls Defining Mousse
Hair styling · Lists fragrance, sulfates, coconut derivatives
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