I will suggest using teeth whitening strips for effective home teeth whitening. This is the method approved by the ADA, American Dental Association for home teeth whitening and is currently the most used way of at home teeth whitening at the global level.
It consists of two strips, one unit, and each has to stick to the each jaw both the upper one and the lower one.
After some time, time depends on the brand you will use, remove the strips and brush your teeth as you do in routine.
Teeth Whitening strips contain the potent whitening agent that acts upon the teeth when you fix it upon your teeth.