After undergoing whitening, teeth shades will brighten up to 10 shades, with an average improvement of five to eight shades. Individual results will depend on your current tooth shade, treatment time, and the composition of your teeth. The end result will be a whiter, healthier smile. Everyone’s teeth are different and will have a genetic stop point. We recommend a 60 minute session for optimal results, and to remove all layers of staining. Additional treatments may be needed based on starting color.