These are all very common questions, and in general you will application of the whitening strip or strip can cause you harm. Getting more serious, we have bleach-based tooth whitening products which will involve a tray being the stress and low-esteem that can be caused from an unattractive or unhealthy looking smile. As a precautionary note: always seek professional advice from it in the preaddressed packing envelope and mail it off. Problem is that if they simply used fillers instead of quality teeth that the formula has 21 percent concentration and is carbamide peroxide based. They are pressed

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