Teeth whitening gel works the most effectively if used with fitted trays. You can get it from a professional dentist or you can buy it from a drugstore or an online store. You must buy a plastic mouth tray, so that it can be boiled as well as shaped as per the shape of your mouth. Plastic teeth tray fits into the mouth well. Only gel can help you get whiter teeth, but it may take some time. To get the optimal result in least time, you should use the gel with mouth tray. It helps to bleach the teeth directly. Direct contact with the teeth surface helps to bleach the teeth as well as give it a whiter and brighter look.
You can find tooth bleaching gels in the drugstores, but professional dentists also sell teeth bleach or teeth gel to the customers, who have already bough mouth trays. Such trays can be found at the supermarkets and also in the online stores. You can get yours from any of them. In the supermarkets, you will also find tooth whitening syringes. However, you must do some homework before using the syringes. Otherwise, it can leave bad effects on your teeth as well as gums. It can harm the gums.
While choosing any teeth whitening kits, especially teeth gel, you must take care of the percentage of the ingredients it contains. Teeth whitening gel should contain 16% bleach. If a gel contains more, you must avoid it.