hloo mam there is no side effects of of whitening as whitening only takes out the stains that are absorbed by tooth whitening causes any harm is just a myth if you want whiter tooth than you can go for bleaching that will give you lighter shade of your tooth You can also practo consult us for regards

There are no effective home remedies for  changing the colour of teeth..If you really want to whiten them there are options called Bleaching and Veneers depending on the condition of teeth..Even bleaching can be done in two ways i.e at home and in dentist's clinic..but for that the situation of teeth should be shown to dentist..As such there are no side effects of the treatment..

Normal tooth colour is pale yellow. Donot opt for treatment unless it's a major matter of concern. See a dentist nearby. If required bleaching can be done

Please don’t try any home remedies without getting a proper solution to the problem. The normal teeth colour of Indians is yellowish white to greyish white. Visit a dentist nearby and get the root of the problem. Get ur teeth cleaned and maintain it by proper brushing