Flash those pearly whites with thisfast acting tooth whitening kitr 100 non peroxide formula which is great for even sensitive teethr kit includesr r 4 x 3ml teeth whitening solutionsr 1 x shade guider 1 x led blue ray lightr 2 x mouth traysr 4 x syringe capsr r r each treatment only takes up to 20 40 minutes at homer simply soak the mouth tray in hot water load the tray with the formula and insert onto teethr can even h