What it is: A kit that combines maximum-strength teeth-whitening serum with triple LED light technology and virtually no sensitivity.What it does: The teeth-whitening kit delivers professional-level whitening with virtually zero sensitivity while helping to repair enamel. The triple LED light offers three modes: blue for whitening, red for gums and purple for whitening and gums. the at-home teeth-whitening kit drastically whitens teeth up to eight shades in just nine minutes a day for 21 days. As the first OTC whitener to focus on alleviating teeth sensitivity, it's enhanced with potassium nitrate to help block teeth sensitivity and hydroxyapeatite to help repair the enamel while whitening.Kit includes:- 1 triple LED accelerating mouthpiece- 1 UV sanitizing charging case with charging cord and plug- 1 Diamondseries maximum-strength whitening serum- 1 shade chartHow to use: Apply the serum by twisting the wand and painting each tooth. Insert the mouthpiece and relax for just nine minutes. Use daily fo up to three weeks at a time or until your teeth-whitening goals are achieved.