21. Staying Kissable
It might amaze you to learn that hydrogen peroxide is perfect for fresh, completely kissable breath. Just gargle the stuff for around half a minute once every seven days and smile knowing that the gross bacteria which causes sour breath has left the building.

Staying Kissable
Just please make sure that you do not gargle this substance too much, as well as making sure the mixture consists of the correct measurements, or you will begin eliminating the healthy bacteria inside the mouth.
22. Sore Teeth
Beyond turning yellow teeth into celebrity-white pearls, hydrogen peroxide is also a great aid for calming toothache.

Sore Teeth
Various studies have shown that a solution of hydrogen peroxide and water will go a long way toward soothing the ache. Again, make sure you don’t overdo the peroxide and that you don’t swallow any (though not lethal in small amounts, it can make your tummy feel bad for a little bit)! Of course, if you are having any kind of a pain in your teeth you should head to the dentist’s office, but this is a great way to carry you through to your eventual appointment.