Whiter, healthier teeth in less than a week. This smile-perfecting pair whitens teeth 6 shades in 5 days (on average) and prevents plaque 10 times better than other systems.Teeth look 2 shades whiter the first time you use this system on a dry brush. Used together, professional whitening toothpaste and professional whitening accelerator combine Calprox, our proprietary formula of encapsulated calcium peroxide and minerals, plus safe yet powerful whitening agents. Expect the ultimate teeth whitening results, without any harsh abrasives. Formulated with carefully selected ingredients for safe teeth whitening without sensitivity or a chance of over-bleaching.