No. LISTERINE® Antiseptic mouthwash is not clinically proven to kill the coronavirus that causes COVID-19. LISTERINE® Antiseptic is a daily mouth rinse which has been proven to kill up to 99.9% of germs that cause bad breath, plaque and gingivitis.
While some preliminary lab studies have shown LISTERINE® Antiseptic mouthwash to be effective against certain enveloped viruses like the influenza virus and herpes simplex type 1 and type 2 viruses, the clinical relevance is unknown and not substantiated. LISTERINE® Antiseptic mouthwash has not been rigorously tested against any strains of coronavirus and no evidence-based conclusions can be drawn with regards to anti-viral efficacy with LISTERINE® Antiseptic.
To date, the available data is not sufficient to support a conclusion that the use of LISTERINE® Antiseptic or mouthwashes could be helpful against coronavirus as further research is needed. As a company firmly rooted in science, we will be active participants in the scientific exchange on this topic.
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