There are many options for teeth whitening, from over-the-counter kits to professional sessions with qualified administrators. As a doctor, I can safely say that the best teeth whitening solution is one that is performed by an experienced professional.
Most over-the-counter teeth whitening kits cannot deliver the results that professional teeth whitening are capable of. Many patients try multiple at-home solutions, only to be underwhelmed by the results. This is because the gels and trays that you can find in stores simply cannot compete with professional alternatives that are only fit for licensed and experienced providers. While they may be able to slightly lighten stained teeth, they lack the potency of professional solutions, which can get teeth up to 8 shades brighter.
Tim Silegy, DDS