2 years ago
First off I have very yellowed teeth, stained by braces, coffee, wine and years of not taking care of them. I have been using this product for two weeks now, every couple days leave on for 15 minutes. I did not notice any sensitivity but my teeth don't normally get sensitive. The color whitened by maybe a shade or two, not hugely noticeable. The process makes sense but the mouth tray to put the gel in is useless. It is small enough for a child's mouth, uncomfortable and presses all the gel off your teeth and out of the mouth guard. Would recommend to try only if you get a different mouth guard to use with the gel.
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