Johnson & Johnson Recalls 4 Million Bottles of Listerine Agent Cool Blue

Johnson & Johnson said on Wednesday it had withdrawn all lots of its Listerine Agent Cool Blue Plaque-Detecting Rinse after determining that the product's preservative did not effectively control certain microorganisms.

J&J said its McNeil-PPC division had recalled about 4 million bottles of the product, which comes in Glacier Mint and Bubble Blast flavors.

"The company conducted a thorough assessment and concluded that the risk of illness in healthy individuals following use of this product is very low," J&J said in a release. It said no consumers had reported adverse health events due to use of the rinse.

But J&J said the product could pose "a significant health risk to individuals with weakened or suppressed immune systems."

The company said the year-old product tints plaque blue for better brushing.

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