If a company has suggested usage for its product, then it is best to follow them. Using a product more than reccommended can cause side effects such a sensitivity, which may cause you to discontinue them early and not get the results you want.
Will using Brite Smile 4 times a day whiten teeth faster?
I ordered Brite Smile, and the TV ad said to use it twice a day. If I use it 4 times a day, will that brighten my teeth quicker?
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