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
Aussie
MIRACLE REPAIRER CONDITIONER
Conditioner · Lists fragrance, fragrance allergens, silicones
Aussie
MIRACLE REPAIRER SHAMPOO
Shampoo · Lists fragrance, fragrance allergens, sulfates, silicones, coconut derivatives
Aussie
Miracle Shine
Lists fragrance, fragrance allergens, drying alcohol, sulfates, silicones, coconut derivatives
Aussie
MIRACLE VOLUME SHAMPOO
Shampoo · Lists fragrance, sulfates, coconut derivatives
Aussie
MIRACLE WAVES ANTI-FRIZZ HEMP SHAMPOO
Shampoo · Lists fragrance, sulfates, coconut derivatives
Suave
Moisture Repair Sulfate-Free Conditioner
Conditioner · Lists fragrance, exfoliating acid, silicones
TRESemmé
Moisture Rich Conditioner
Lists fragrance, fragrance allergens, exfoliating acid, silicones
frenshe
Moisture Shampoo
Shampoo · Lists fragrance, fragrance allergens, coconut derivatives
Herbal Essences
Moisture-Balancing Shampoo
Lists fragrance, sulfates, coconut derivatives
Suave
Moroccan Infusion Shine Conditioner
Conditioner · Lists fragrance, exfoliating acid, silicones, formaldehyde releasers, coconut derivatives
Suave
Moroccan Infusion Shine Shampoo
Shampoo · Lists fragrance, sulfates, silicones, formaldehyde releasers, coconut derivatives
Treacle moon
My coconut island
Lists fragrance, fragrance allergens
Revlon
Natural Honey Nourishing
Lists fragrance, fragrance allergens, sulfates, parabens, coconut derivatives
Revlon
Natural Honey Oats
Lists fragrance, fragrance allergens, sulfates, parabens, coconut derivatives
Palmolive
Naturals Antipelliculaire
Lists fragrance, fragrance allergens, essential oils, sulfates, salicylic acid, coconut derivatives
Palmolive
Naturals Brilliant Color Shampoo
Lists fragrance, fragrance allergens, sulfates, chemical UV filters, salicylic acid, coconut derivatives
Palmolive
Naturals Long & Shine
Lists fragrance, fragrance allergens, essential oils, sulfates, salicylic acid, coconut derivatives
Nivea Men
NIVEA Men Active Energy Hydraterende Dagcrème
Lists fragrance, fragrance allergens, parabens, silicones, chemical UV filters
Kenra Professional
Nourishing Masque
Conditioner · Lists fragrance, drying alcohol, parabens, silicones, chemical UV filters
Herbal Essences
Nude 0% Shampoo
Lists fragrance, fragrance allergens, essential oils, sulfates, coconut derivatives
L’Oréal
Nude touch Pure Texture
Lists fragrance, fragrance allergens, exfoliating acid, silicones
olay body wash
Lists fragrance, essential oils, sulfates, coconut derivatives
Olay body wash
Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Olay
Olay Fresh outlast
Lists fragrance, fragrance allergens, sulfates, coconut derivatives
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