Reduce Stains Caused by Tea
Drinking tea can cause lasting discoloration, but it is possible to reduce staining by developing healthy oral care habits.
At home, simple things such as brushing your teeth regularly can help. Brushing twice a day is good, but brushing immediately after you drink a cup of tea is even better. Drinking water after a cup of tea can help reduce the amount of tannin left in your mouth, too. Switching from black tea to herbal or green teas can also reduce staining, although it will not eliminate the problem altogether.
For added stain fighting, try brushing with Colgate Optic WhiteTM, which can whiten teeth up to three shades and starts to show results within one week.