Med style haircuts the hydrogen peroxide solution in the hair only for the stipulated time Washing hair very quickly may not give the desired hair shade, while retaining it for a prolonged period may cause hair damage. Keeping this in mind, note the time and wash hair accordingly.
Hair bleaching does not give instant results, but you will notice a lightened hair shade after a few weeks.
It is usual that hair bleaching with peroxide or any other bleaching ingredient cause damage to the hair. In order to restore dry and damaged hair, consider a deep conditioning treatment with a quality product after you lighten your hair.