Teeth Whitening Simulator

I like it. The 10-40 range certainly are dramatic in appearance but the A1 and B1 look more like natural teeth to me. Still I like the dramatic look of the 20-30 range myself.
The simulator is comprehensive and answered all the main questions I had after playing around with it.

It is a very helpful tool! You can picture out the degree of whiteness you want before buying any whitening products you can use at home. Sometimes it is confusing when a product claims that it will make your teeth two shades whiter. Now you can see for yourself what they mean.