When properly applied, you will be able to see a difference in the color of teeth after 2 treatments and further up to 8 shades whiter after only 6 treatments. We recommend doing the first 6 treatments in a row over 6 days, for the best possible result. If you feel you need more, you can maximum do 12 treatments a month. The Result Guide is included in the Teeth Whitening Kit.
My teeth got a couple of shades whiter after only a week.