Dentitox Pro There is a nifty chart that allows you to compare the color of your teeth. In doing so, you’ll be able to see just how many shades whiter the product will promote. In nearly all cases and so long as you follow the correct application system, you’ll be able to achieve level 4 brightness, which is the whitest color that your teeth can be. As the brand explains, it is important to keep in mind that results may vary. There are a number of reasons for the variation. For example, the results that you experience will be how well you apply the product, how well your teeth react to the applicator pen formula, and the time you keep the product on your teeth. In general, the product is meant to work very well and you should not have any issues as long as you do things correctly.