I've already ordered a second bottle; I can not say that my teeth became white like in advertising, maybe one ton whiter, do not know. But I like to have it in my daily morning routine. Good taste, wonderful ingredients. No miracle but I like this Pre-brushing. I've already ordered a second bottle, I will not say that the teeth become white as in advertising, is one tone whiter. But I like to have this tool in their daily routine in the morning. Good taste, a wonderful composition. The miracle did not happen, but I liked this rinse.