Do teeth whitening systems like Crest white strips actually work?

Im just skeptical about this.
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Yes they do. I'm 12 but my dentist said that they're fine for my age. I bought the Walgreens whitening strips, and they're doing great! On the instructions, it says to do it for 30 min and just throw the strips away and to only use one a day for two weeks. I follow all the instructions except I use them for about 1-2 hours. Do this once a day for like a week, and my teeth are really white. I drink coffee too (lots of milk) and i just use the whitening strips after. I tried the Crest whitening strips too and they're pretty much the same, except Crest took a little longer but still gave me same results. Drinking anything is ok really, just make sure that its not TOO often (like a cup every 3 hours, someone I knew did that and didn't use whitening strip, they have horrible teeth now) and use the strips after. I recommend both, but for faster results, use Walgreens. A good time to use them is right before bed because then its the last thing so it "sticks" is a way to put it. Don't use them while sleeping unless you want your enamel on your teeth to go away along with the stains too. Just because you have white strips doesn't mean you should stop brushing your teeth or flossing. Brush your teeth first, floss, then put the white strips on, but make sure you let your teeth get a little drier first or the gel on the strips will make the strips slide off. They are kind of expensive though, the Walgreens brand costing $30 when I got them and the Crest about the same price. Don't get them from eBay even if it's cheaper. I doubt its clean even, going through the postal system along with thousands of licked letters, ew..Using the strips moderately doesn't get rid of enamel, just don't use it more than once a day. If you really have an urge to use it more than once, just brush your teeth insted. Hope this helps!
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