Allergy to Isothiazolinone, Methylisothiazolinone and Benzisothiazolinone - SHOCKING. It's in Colgate Total mouthwash, reported by member who had a reaction to it before realizing the ingredient. I don't know how on earth
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This Woman Had An Intense Allergic Reaction To A Teeth-Whitening Treatment—What You Need To Know | SELF
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