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Title: Make my teeth very very sensitive
Review: I tried this product, but it got my teeth feel uncomfortable for the first couple days ( I used this every other day). Up to the third time, I couldn't stand it. My teeth feel very very sensitive after a few hours. Maybe it is just for me, but I had a very bad experience with this product. I suggest people to be careful when they use it. Stop it right away when you don't feel very well.
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