iWhite Superior Whitening Kit is a retail pack of ten prefilled tooth-whitening trays. This listing is for one 10pcs retail pack. Ingredients listed by the supplier: Aqua, Amorphous Silica, Glycerin, Sorbitol, PEG-40 Hydrogenated Castor Oil, Chondrus Crispus Powder, Pthalimidoperoxycaproic Acid, Zea Mays Starch, Tricalciumphosphate, Xylitol, Sodium bicarbonate, Hydroxyapatite, Perlite, Calcium Gluconate, Calcium Dilactate, Microcrystalline Cellulose, Mannitol, Citric Acid, Sodium Levulinate, Sodium Anistate, Methyl Diisopropyl Propionamide, Sodiumsacharinate, Xanthan Gum, Monosodium Citrate, PVM/MA Copolymer, Mineral Oil, Hydrogenated Lecithin, Lemonene, C12-15 Pareth-3, Polysorbate 85, Aromo, Acrylates/ Acrylamide Copolymer, Sodium Carbonate, CI77289 1. Brush teeth gently before each application. 2. Make sure that hands are clean and dry. 3. Remove the prefilled tray from the sealed sachet and immediately place the tray in your mouth ensuring the gel is in contact with the tooth surface. Upper and lower teeth can be whitened at the same time. 4. Gently close your lips over the tray and carefully close your mouth. Caution: biting too hard may cause the excess gel to ooze out of the tray and away from teeth. 5. Remove the tray after 20 minutes and discard immediately. Gently rinse with water the remaining gel away from your teeth and gum.