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Methylisothiazolinone

icky
What-it-does: preservative

Details

As you may guess, if something is only recommended in products that you rinse off (cleansers and shampoos), then it’s probably not the best ingredient for the skin.

Methylisothiazolinone (MI) is a preservative that' super efficient against bacteria at surprisingly low concentrations. The problem with it though is that it can also sensitize and irritate the skin quite easily when it comes in leave-on formulas.

Currently, some countries are considering to ban it entirely (like Denmark) and the permitted use level is very low (under 0.01%). Luckily there are plenty of products on the market with other preservative options so if you are a better safe than sorry type it's probably best to avoid it. 

Products with Methylisothiazolinone

MILVA Rose Water Dove Go Fresh Face Cleanser Mantecorp Ivy C Face Bruno Vassari Extra Rich Cleansing Foam Makeup Artist's Choice Gly-Luronic Miracle Correction Serum Living proof No Frizz Conditioner SSCPL Herbals Detan Face Pack Himalaya Refreshing And Clarifying Toner Max Block Sunscreen Sunscreen Lotion Broad Spectrum Spf 30 grace & stella Aloe Vera Gel Iba halal Aloe Aqua Face Wash Ruby Rose Sérum Revitalizante Ice Pearl Hidratante Skin B5 Acne Control Cleansing Mousse V05 Detox With Micellar Water Purifying Shampoo Aesop Purifying Facial Cream Cleanser Bruno Vassari Scrub & Mask Himalaya Youth Eternity Night Cream MBH DERMACARE Oil Control Acne Cleanser Natio Pore Unclogging Face Scrub Schauma 7 Трав Simple Foaming Cleanser Topicrem Ph5 Gentle Milk Shampoo Aesop Amazing Face Cleanser Asepxia Acne Facial Cleanser Australian Pure Beauty Moisturiser Sensitive Sorbolene Dr Sebagh Serum Repair Dr. Teal's Shea Butter & Almond Oil Body Wash Hada Labo Mild & Sensitive Skin Face Wash Himalaya Herbals Purifying Neem Foaming Face Wash Natura Loção Hidratante Protetora Suave Ocean Breeze Shampoo BIOSILK Silk Therapy Conditioner Dr. Medica Dermatological Anti-Acne Cleanser Hada Labo Unscented Hada Labo Tokyo Anti-Aging Face Mask Herbal Essences Hello Hydration Moisturizing Conditioner With Coconut Essences Himalaya Herbals Puryfing Neem Face Wash Joelle Ciocco Lotion Lactee/Perfecting Lotion Lotus Herbals Safe Sun Uv Screen Matte Gel With Spf 50 Nivea Visage Q10 Plus Anti-Wrinkle Eye Refreshing Roll-On TRESemmé Botanique Nourish + Replenish With Coconut Milk & Aloe Vera Conditioner AcneFree Therapeutic Sulfur Mask BioAqua Aloe Vera 92% Soothing Gel Clinique Exfoliating Scrub John Frieda Luxurious Volume Core Restore Protein-Infused Clear Conditioner Kiehl’s Men's Oil Eliminator Deep Cleansing Exfoliating Face Wash Pantene Daily Moisture Renewal Conditioner Aesop Fabulous Face Cleanser Clarins Pure Melt Cleansing Gel Freeman beauty Cleansing Apple Cider Vinegar Clay Mask + Scrub Frieda FRIZZ EASE Miraculous Recovery Deep Conditioner