Its safe pre-filled trays that conveniently whiten and brighten smiles in one week - or less. Seven Day Smilepacks deliver visible results in as soon as 3 days with maximum benefits in 7 days or less. Seven Day Smilepacks get your teeth up to 5 shades whiter in seven daily 20 to 45 minute treatments. Features Seven Day Smilepacks are a perfect solution for anyone who wants to achieve their brightest and whitest smile. Seven Day Smilepacks contain a powerful 11% solution of Hydrogen Peroxide in preloaded trays for your upper and lower teeth. No trays to mold. No set-up process. Whitening has never been easier. Whitening Ingredients Deionized Water Glycerin Alcohol Carbomer Polysorbate 20 Triethanolamine Flavor Aloe Vera Barbadensis Leaf Extract Sodium Saccharin Potassium Sorbate Disodium EDTA.