ACNES
Acnes Foaming Wash Refill 200ml
about $15.47
Methylisothiazolinone
Methylisothiazolinone stops microbes from growing so the product stays safe to use.
In the Journal
- Why Does Health Canada Restrict MIT and MCI Preservatives?
Health Canada caps methylisothiazolinone and methylchloroisothiazolinone by concentration and product type rather than banning them — a rule built on a documented, multi-country rise in contact allergy that several independent research groups called an "epidemic."
Recent research
Tracking 17 published papers (2024-2026).
- Methylchloroisothiazolinone and Methylisothiazolinone 10 Years After Regulation: A Case Story of Liquid Soaps and Shampoos.
Contact dermatitis, 2026
- A Cross-Sectional Study of Contact Allergens in Hotel Personal Care Products in Canada, the United States and Europe.
Contact dermatitis, 2026
- Mapping of Former Strategies and Future Needs for Regulatory Prevention of Skin Sensitization: Cosmetic Products.
Contact dermatitis, 2026
Where it fits in real formulas
Related ingredients, common formula neighbors, naming, and catalog context. This stays separate from evidence and personal-fit guidance.
Similar ingredients
related by documented function or concern
BHA exfoliantPromotes shedding of surface scale through keratolytic actionPiroctone OlamineA randomized trial found that a shampoo combining piroctone olamine with climbazole reduced dandruff signsClimbazoleCan contribute antifungal activity in an anti-dandruff formulaZinc PyrithioneControls dandruff symptoms when used at permitted concentrations in a compliant product
Where it's used
Real brands and product categories from the 128 decoded products listing Methylisothiazolinone — an observation of our catalog, not a claim about market share.
Brands
Product categories
shampoos (54), masks (11), hair masks (7), conditioners (6), stylings (6), cleansers (5)
Based on those categories, Methylisothiazolinone shows up mostly in rinse-off products (65 of 73 classified) — derived from product category, not a label fact.
Commonly appears alongside
How often another ingredient appears in the same decoded products. This does not show routine compatibility.
Zinc Pyrithione6%8 of 128 decoded productsHydrolyzed Keratin8%10 of 128 decoded productsPiroctone Olamine4%5 of 128 decoded productsAHA exfoliant (gentle)23%29 of 128 decoded productsSodium Ascorbyl Phosphate5%6 of 128 decoded productsBHA exfoliant7%9 of 128 decoded productsHydrolyzed Wheat Protein2%3 of 128 decoded productsPro-vitamin B532%41 of 128 decoded productsArgan oil2%3 of 128 decoded products
Products with Methylisothiazolinone
All 90 →90 public products list this ingredient.
Catalog preview
A compact look at the first products in this result set
1–1 / 12
Himalaya
Himalaya Neem Foaming Face Wash 150ml
about $19.11
Himalaya
Himalaya Neem Foaming Face Wash 150ml x 2ea
about $27.18
Lee Stafford
Lee Stafford For The Love Of Curls Shampoo - 250ml
about £5.24 GBP
Tigi
Tigi Bed Head Urban Antidotes Resurrection Shampoo - 750ml
about £7.85 GBP
Herbal Essences
Herbal Essences Coconut Milk Hydrate Vegan Shampoo – 250ml
about £2.29 GBP
Tresemmé
TRESemmé Moisture Rich Balsam - 300ml
about £3.99 GBP
Herbal Essences
Herbal Essences Hello Hydration Hair Conditioner – 275 ml
about £3.99 GBP
Triple Eight
Triple Eight Caffeine Shampoo – 250ml
about £1.99 GBP
Pantene
Pantene Pro-V Active Repair & Protect Hair Conditioner – 230ml
about £4.49 GBP
Tresemmé
TREsemmé Conditioner Clean & Replenish - 500ml
about £4.99 GBP
Pantene
Pantene Pro-V Active Volume & Body Hair Conditioner – 230ml
about £4.49 GBP
About the sources
Ingredient lists show presence and order, not concentration, pH, ingredient grade, delivery system, or finished-formula performance.
Sources & methodologyCompiled from the EU CosIng database (ref 35341) · snapshot 16 June 2026. CosIng is an informational, non-legally-binding reference. Inclusion does not mean an ingredient is approved, safe, authorized for cosmetic use, or clinically effective. An INCI list does not reveal concentration, pH, ingredient grade, delivery system, or finished-formula performance.