1. Baking Soda
Baking soda is one of the cheapest and best tools that we all already have in our homes to get rid of yellow teeth. One of the easiest ways to make use of it would be to combine it with your toothpaste. Take about a quarter of teaspoon of baking soda and mix it with a little bit of toothpaste, and then use this gritty mixture to brush your teeth at least twice a week. You can also make a mixture of hydrogen peroxide and lemon juice or white vinegar to replace the warm water.
A word of caution, though, is to not use it excessively. Moderation is very important as using too much baking soda too often can erode your teeth’s natural enamel, which can open them up to other issues and damage.