In some cases, the skin whitening products do not work as desired, so it is important to review the different products available in the market. For example a skin whitening deodorant, which claims to make the skin whiter .
However most people are in the habit of applying the deodorant to their clothes also, especially if they are sweating a lot and in this case, the deodorant does not evaporate like others, it leaves a white patch on the clothes which has to be washed or rubbed off.
So this deodorant cannot be used on clothes which are dark in colour, as the white patch caused is fairly visible, adversely affecting the appearance of the person. In other cases, the whitening is visible only when the lotion is continuously used, when it is not used for some time, the skin will revert to the original skin tone.