i White instant is an easy to use, dental safe & instant teeth whitening product. This at home treatment should be worn for only 20 minutes a day for instant results, up to 8 shades whiter. The product can be used for 5 consecutive days for even more astonishing results or you can use it once in a while whenever you feel it is necessary. The one size fits all trays are pre-filled with active gel & hygienically packed. i White gives instant whitening & actively removes stains, thanks to the unique film crystallised technology, this innovative one step whitening system provides an immediate natural whitening effect. It delivers a highly soluble source of Calcium & therefore strengthens the teeth. It is a one step system no need to clean or boil mouthpieces, mess with syringes or brushes, measure gel or use special toothpaste or rinses. The tray is designed to whiten both the back & front of the teeth. This is important as teeth are translucent & stains on the back can show through the front. It is easy to wear & use, the one size fits all trays are soft & flexible. There is no mixing involved, each tray is filled with just the right amount of whitening gel, which is formulated specifically to prevent sensitivity. & this product is clinically proven to be safe & effective. To use: Brush teeth gently before application. Make sure your hands are dry & clean. Remove the pre-filled tray from the sealed sachet & immediately place the tray in your mouth ensuring the gel is in contact with the tooth surface. Upper & lower teeth can be whitened at the same time. Gently close your lips over the tray & carefully close your mouth. Caution: biting too hard can case excess gel to ooze out of the tray & away from the teeth. Remove the tray after 20 minutes & discard immediately. Rinse away with water the remaining gel from your teeth & gums.