Written on labels as: Methylchloroisothiazolinone, Neolone 950 preservative, OriStar MIT, Methylisothiazolinone, and Microcare MT
Found in the following products: Shampoo, conditioner, hair color, body wash, lotion, sunscreen, mascara, shaving cream, baby lotion, baby shampoo, hairspray, makeup remover, liquid soaps and detergents
Chemical purpose: Used as a synthetic cosmetic preservative
Potential harmful risks:
Allergies: Two of the most well-known contact allergens found in cosmetics are Methylchloroisothiazolinone and Methylisothiazolinone.
Organ System Toxicity: Studies show that animals showed an array of signs and symptoms after being exposed to highly concentration MIT such as increased body weight to death.
The European Society of Contact Dermatitis (ESCD) recommends that MIT be banned from leave-on skin products.
Castanedo-Tardana, M.P., & Zug, K.A. (2013). Methylisothiazolinone. Dermatitis, 24(1), 2-6.
Rohm & Haas (2002). Acute Inhalation toxicity study in rate (methylisothiazolinone 53.52% active ingredient). Rohm & Haas Chemicals, LLC Report, 06R-1002.