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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)

Also listed as

methylisothiazolinone