A new study looking at the effect of mouthwash on the novel coronavirus that causes COVID-19 found that mouthwashes that contain CPC (cetypyridinium chloride) were able to kill the virus within 30 seconds in a lab.

Preliminary findings from researchers at Cardiff University reported that certain kind of mouthwashes (looking at well-known brands from Dentyl to Listerine) were effective when exposed to the virus in saliva for 30 seconds. Per the results, over-the-counter mouthwashes that had at least 0.07 percent CPC showed “promising” results for being able to kill the virus in the lab setting.