PRO-SYS Whitening Strips Kit, Sensitive Teeth Whitening, Stain Remover 4 boxes

Brand new, sealed. This is for all 4 boxes for a total of 112 strips (56 days treatment) MINT-FLAVORED TOOTH WHITENER: Enjoy professional-looking and effortless teeth whitening at home by applying one strip for 30 minutes every day for 14 days NON-SLIP TECHNOLOGY: Our Whitestrips are easy to peel and apply, utilizing non-slip technology to keep your teeth’s enamel safe after every use 8% HYDROGEN PEROXIDE: Who says sensitive teeth whitening is impossible? Our products are created with 8% hydrogen peroxide, which is strong enough to remove stains but remains gentle on the teeth and gums DENTIST-RECOMMENDED: For your safety and comfort, our tooth whitener is FDA-registered 14-DAY TREATMENT: Each box contains 28 strips; 14 treatments for your upper teeth and 14 for lower teeth