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Review title: Too painful to use
Product review: I used this product for two days. The first day wasn't painful at all, but I was nauseated after using it for the maxiumum length of 45 minutes. The second day I noticed some discomfort about half way through that same amount of time. By the end of the 45 minutes that second day, I was nauseated again, one of my front teeth hurt badly, and my gums and lips were chemically burned to the point that I had blisters that took three days to heal. I'm too afraid to put them in again.I did notice my top teeth were slightly whiter, but it did nothing for my bottom teeth. I originally purchased this product over others because I thought the trays might cover more teeth than the others (instead of just the front four), but this wasn't the case. Not only did they not cover more teeth, they also did not reach to the top of the teeth they were supposed to cover. So they are short both in width and in height. Overall, I have to say it was a terrible waste of money.
