All I can say is WOW. I wanted teeth Whitening and didn't know who to trust so I read all of the reviews on this company and didn't find any that were not good. So I took the leap and am SO glad I did. My dentist told me I could never have white teeth but Steve really took a lot of time with me and educated me on the structure of teeth and what I could and could not expect and the results ended up being more than what I could have hoped for!! Truly I will keep up the maintenance now that I know I can have a nice smile forever and never have to have yellow teeth again.