Methylisothiazolinone
Irritancy: unknownComedogenicity: unknownPreservative
The details
MI is a preservative and known skin irritant. In the past, MI was used for its ability to prevent bacteria, yeast, and fungi growth in low doses. Nowadays, you'll most likely see MI combined with Methylchloroisothiazolinone (MCI). Since then, numerous studies have shown this ingredient to cause contact dermatitis, or skin irritation. The use of this ingredient varies around the world:
Effects
May Worsen Eczema0May Worsen Irritation0
Found in (6 products)
Sun Bum
Sunscreen Face Lotion - SPF 50
Sunscreens
Oil-freeAlcohol-freeParaben-free+4
Himalaya
Purifying Neem Face Wash
Face Washes
Oil-freeReef safeAlcohol-free+5
St. Ives
Blackhead Clearing Face Scrub Green Tea
Exfoliators
Oil-freeReef safeAlcohol-free+5
Clarins
One-Step Gentle Exfoliating Cleanser with Orange Extract
Exfoliators
Oil-freeAlcohol-freeSilicone-free+1
DRMTLGY
Tingl Exfoliating Pads
Exfoliators
Reef safeAlcohol-freeParaben-free+4
Garnier
Bright Complete Vitamin C Face Scrub
Exfoliators
Oil-freeReef safeAlcohol-free+4
Also listed as
methylisothiazolinone
