Light brown skin color bleaching

How light can a person with oily skin become with skin bleaching? Say if their skin is already a light brown color? Is it possible for them to get the lightest, fairest skin? and how long could it take?

Answer:

Hello, the lightest one can get during a skin whitening process is usually 1-3 shades, depending on how much your skin would allow it. This takes place between 2-4 weeks.

Maria