Review (5/5): They Do Work
I was surprised to see results after just one use. You have to use the 56 pack 2x a day and can do the upper/lower set of teeth together or at different times. The strips are coated with a clear gel that is whitening the teeth. The strip for the bottom set of teeth is very small and only covers about 5-6 teeth, but the upper strip offers better coverage. My teeth were white already, so now they are really white. I gave a few strips to my mom who has coffee stained teeth and they worked for her after only 3-4 uses. Good results. Pleased with the product.