A 30-year-old member asked:
What can happen if you accidentally swallow a hydrogen peroxide teeth whitening pre-rinse product while gargling?
3 doctor answers • 5 doctors weighed in

Dr. James Fergusonanswered
Pediatrics 47 years experience
My burn some: Hydrogen peroxide will actually convert to water after it released its oxygen.The teeth whitening products will burn a bit going down if you swallow some but other than transiently irritating the tissue should cause no long term problem.
5.5k viewsReviewed >2 years ago

Dr. Kenny Abedinianswered
24 years experience
No problem: There is no harm if you swallow a small amount. If you have a little sensitivity, drink some water to dilute it.
5.3k viewsReviewed >2 years ago

Dr. Jeffrey Goldsteinanswered
Cosmetic Dentistry 34 years experience
Nothing.: Assuming you don't swallow a large amount (which is called "drinking it" you shouldn't suffer any ill effect. You body makes its own hydrogen peroxide in certain white blood cells!
5.1k viewsAnswered >2 years ago
Last updated Aug 12, 2019
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