UMass Amherst researchers find anti-bacterial chemical accumulates in toothbrushes

Read the full story in the Boston Globe.

A chemical contained in some brands of toothpaste accumulates in toothbrushes over time and is then released into a person’s mouth when they switch to a different type of toothpaste, according to researchers at the University of Massachusetts Amherst.

A team of environmental chemists reported in the journal Environmental Science and Technology that triclosan 6 an anti-bacterial agent that has been banned from other products — builds up in the bristles and other soft parts of toothbrushes, the university said in a statement.

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