
About this product
Listerine is an oral antiseptic mouthwash designed to kill bacteria and freshen breath.
Best for
Type
Key actives
Formula notes
Full ingredients
Guru Score
Mixed
Early verdict · Few reviews so farWhat the gurus are saying
Experts split on whether Listerine helps or harms the mouth. Some reviewers found thymol and menthol provide antifungal properties and suggest it may help reduce canker sore recurrences by cutting down bacteria and yeast. Others argue the harsh ingredients like alcohol and SLS disrupt your mouth's natural microbiome, and recommend avoiding it in favor of letting saliva do the protective work.
Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.
Independent of what the gurus think, this is what the published research supports about the main active ingredients here.
Listerine is an oral antiseptic mouthwash designed to kill bacteria and freshen breath.
The gurus mostly approve it, but with enough reservations to keep it in the middle at a Guru Score of 64%.
Listerine holds a Guru Score of 64%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected.
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