Wow [SEP] I have tried all the different kinds of teeth whitening from white strips, UC lights, tooth paste and even baking soda and peroxide to no avail. Didn’t even notice a difference or not much at all. This is the best product so far to get my teeth white and not irritate my gums. The first time I used it I could tell a difference. Each time there after I can also see a difference. Now I’m using it once a week to keep my teeth white. Get some and try it for yourself. You will be happy you did.