White teeth! Use a little toothpaste, mix in one teaspoon baking soda plus one teaspoon of hydrogen peroxide, half a teaspoon water. Thoroughly mix then brush your teeth for two minutes. Remember to do it once a week until you have reached the results you want. Once your teeth are good and white, limit yourself to using the whitening treatment once every month or two.
I have been buying Sephora daily sanitizer and shampoo for my brushes for years, spending ungodly amounts of money on products that I feel are subpar. I just did this to my brushes and not only did they get cleaner then Sephora shampoo but it also took a third of the time!!