I love the idea of whiter teeth, but I was terribly dissappointed in the Crest premium Whitestrip.
The Crest whitestrip was not easy to put on and not very comfortable. Placing a strip on your tooth is just not comfortable.
Another downside is the time commitment to this product. You need to wear the whitestrip for a total of an hour a day for Seven Days. This is a huge commitment. Not to mention a long time to not be able to close your mouth comfortably. You can't exactly leave the house when you have two strips in your mouth. This puts a bit of a damper on your day, but hey pains to be beautiful, right?
On the up side te whitestrips are clear. The strips are also a step up from the trays and gel of ten years ago. My teeth were noticably whiter after seven days. The results lasted for about six months, not the twelve months the product claims.