People who have had it done paid up to $500-$1000 for it. I have asked dentists what they think of this and they say that it tends to strip the teeth of its natural polish, which isn't really good for the teeth. I think Crest Stripes is pretty good ... from the ads. :p
funny story, one of my co-workers had yellow teeth. While teaching her first born about colors she pointed toward her teeth and asked her " What color are my teeth?". The girl replied "Yellow".
Long story short, she tried the Crest strips and it worked.
I would use the white strips. A friend of mine is a dentist and she said that the results and said for the price and the results you get, the crest white strips is the way to go..its around $30 (U.S.) and it doesnt not damage the enamel( the stuff that makes your teeth shiny and smooth) on your teeth