Mouthwash Can Kill COVID-19 in 30 Seconds, Preliminary Lab Study Finds

A new study has found that over-the-counter mouthwash can kill coronavirus within 30 seconds of exposure in a lab setting.

The study, conducted by researchers at Cardiff University, found that mouthwash containing at least 0.07 percent cetylpyridinium chloride (CPC) showed “promising signs” of reducing transmission of the virus in human saliva.

The report, which was released on Friday, has yet to be peer-reviewed but supports another study published in early November that found CPC-based mouthwashes are effective in reducing COVID-19’s viral load.

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