I love Smileactives Pro Whitening Gel. This is by far the easiest, most painless whitening product I have tried. It is a whitening gel you simply add to your toothpaste on the brush twice a day. You already brush your teeth twice a day at minimum. Why not whiten them at the same time. There is no taste to the product. I noticed no sensitivity to my teeth and gums, like I often do with whitening products. Not only is it easy, it works.