The Truth about Teeth Whitening

I want to clear up a few things about teeth whitening.

1. Using baking soda to whiten your teeth will make them lighter if you have staining habits (wine, coffee, tea, smoking). HOWEVER, with that stain some enamel is removed. HERE's THE THING: The part under the enamel (dentin) is darker and will appear more as enamel is removed. BOTTOM LINE Enamel doesn't grow back and baking soda is harsh.
2. There are many whitening scams on the internet. Some provide products you can find in toothpaste, some that don't whiten at all and some companies just take your money. Whatever the case---If it sounds too good to be true, it probably is.
3. You get what you pay for. Go here to learn more about different whitening methods and decide what is best for you.