I've used Crest white strips and I have to say it is a quite pricey method, with minimal results. Most people are too impatient as it is to follow through with the timelines recommended by these brands, but I did and found that all the money I spent on this product wasn't worth what I got out of it. One item I do like is the Aquafresh White and Shine toothpaste. I brush my teeth twice a day and I have seen gradual results over the last 4 months, which is good for a… read full review »