Pick your answer from:
a). The hydrogen peroxide will close your mouth, making it dry out and changing the color of your teeth. Rub a baking soda scrub over your tongue and gums.
b). If it is not, talk to your dentist about other options and make sure to choose a hydrogen peroxide that will help. Hydrogen peroxide is an effective whitening agent, but it might be more expensive than baking soda.
c). Then, dump the peroxide and baking soda into a powder storage container. Using a very soft toothbrush, dissolve a teaspoon of baking soda into the peroxide.
d). Anything stronger is not safe for use in your mouth. Read the label to confirm that the peroxide concentration is safe for use in the mouth.Choose from options above and answer: What most naturally follows?

How to whiten teeth with natural methods
Purchase baking soda and hydrogen peroxide.
Both items can be found at local pharmacies and supermarkets.
Make sure that the peroxide you buy is a 3% solution.
Answer:
d).