I went back to white strips
Upon my first use, I did the 4, 8 minute applications, for 10 days. I hardly noticed my teeth being any whiter.  I used it two more times since, 4, 8 minute applications for 5 days, and still no results worth $150.  I'm on day 2 of Crest white strips and my teeth are already looking bright white!
Rating: 1 stars