I used this homemade teeth whitener for only 3 days and am ridiculously pleased with the results. On day 4 I went to the dentist for a cleaning and the first thing my dentist said was, "you have the whitest teeth I've ever seen" and then I told him how I made and have been using my own whitener and he completely approved it and of all the ingredients. It's super easy to do and all you need is a little bit of toothpaste, water, baking soda, & hydrogen peroxide.
1. In small mixing bowl, mix together 1 teaspoon baking soda, 1 teaspoon hydrogen peroxide, 1/2 teaspoon water, and small amount of your regular toothpaste. Here is what mine ended up looking like, Mine was a little on the watery side, if you want yours thicker simply add more toothpaste. The baking soda will also cause your concoction to fizzle a little.
3. Do this about once a day for about week or until you see the results you want. (I only needed to do it for 3 days). Once your teeth are nice & white, limit yourself to using this once every month or two.
4. If you need to quick start this within a few days or aren't seeing the results you want after a week, you can also try also mixing 1 part hydrogen peroxide and 1 part water and swishing it around in your mouth after brushing your teeth before bed and then spitting & rinsing it out.