White Instant2 works with a unique new triple teeth whitening technology that whitens teeth up to 8 shades instantly, strengthens tooth structure, and restores enamel. You'll see an immediate effect after the first application! This one-step system is easy to use and actively removes stains from your teeth. The product is made up of 10 thin, flexible trays to ensure a comfortable fit and maximum performance. There's no need to clean or boil nozzles, or mess with syringes or brushes. iWhite Instant2 whitening trays are one size fits all and individually wrapped. This at-home treatment should be used for just 20 minutes a day for instant results of up to 8 shades whiter. The product can be used for 5 consecutive days for even more striking results, or occasionally when needed. iWhite Instant2 is clinically proven to be safe and instantly effective.