As male/female pattern hair loss is a genetic condition, you will need to maintain the program for as long as you want to grow and maintain your hair. Unfortunately once treatment is stopped, the hairs you would have grown back plus the ones that you would have lost normally with the passage of time will gradually fall off, as they were genetically programmed to be lost.
In many cases, clients are satisfied with the amount of hair regrowth and will just wish to maintain their newly grown hairs. There are also those whose priorities change later in life and will not be able to stay on the full program. For these reasons, we can design custom maintenance programs specially tailored to the individual.
For non-genetic causes of hair loss, normal hair growth will usually resume once the causative factor is dealt with.