This is how I whiten my teeth.... All you need is baking powder, water, a toothbrush, a bowl, something to mix the paste, toothpaste, and mouthwash. Mix the water and baking powder in a bowl until its like a paste. Put a little of the paste on your toothbrush and brush your teeth with the paste for 1-2 minutes. Rinse your mouth out. After your done brush your teeth with regular tooth paste and then gargle. There you go! Whiter teeth!