Minoxidil is the most common active found in dermatologist-approved products to treat hair fall and low hair growth. It works by increasing the blood circulation to hair roots through vasodilation (i.e. Increase in the size of capillaries that supply blood).
Though it has shown good results, the overall satisfaction level is low owing to its reversible action. It means that blood supply will reduce as soon the treatment is stopped and the hair fall will start almost immediately after discontinuing the treatment. Also, there are serious side effects like fast/irregular heartbeat, fainting & chest pain observed with Minoxidil.
However, looking at the track record of Minoxidil it would be wrong if we suggest not to try it ever. Our scientists have been working on this concern for about seven years, we probably have a better and effective solution to prevent hair fall relapse after Minoxidil treatment.