DIY tooth whitening: Mix a tiny bit of toothpaste with 1 tsp baking soda & tsp water. Brush teeth for 2 minutes. Do this once a week until you reach desired results. From then on, use the treatment once every month or two.
More and more people are convinced of the benefits of sodium bicarbonate, so they got to use it frequently in everyday life, either for cooking, cleaning or as a beauty product. Especially women appreciate it as a beauty product.