1. Hair renews through stem cells which are unlimited, so no you don't have to worry about them running out 2. When you stop minoxidil, Hair don't shed because minoxidil is stopped, they shed because you scalp disorder restarts Look at it like a moving car If you deaccelerate it will slow down But when you stop that it regains speed Minoxidil is the thing deaccelarating the process of hair loss 3. Minoxidil has to applied till you want your hair, for life if that's your need Final statement at current level of medical evidence Whatever media claims, there is NO PERMANENT CURE for male pattern hair loss Other option, natural hair wigs (it seems artificial but the results are too good) Hair transplant will also need you to continue minoxidil 4. A maintenance DHT inhibitor atleast as Topical form is good idea

You are suffering from hormonal changes causing Androgenetic alopecia causing hair fall. It's completely stoppable even regrowth of hair is possible with certain medications without any side effects. Treatment depends on the grade of hair loss. So, it's a must for diagnosing which grade, you are in for an effective treatment. Please  send photos of your head, by direct online consultation for accurate diagnosis and proper treatment.

I can understand your concern Get online consultation for proper guidance and treatment

Consult online for further treatment

Take consultantion and discuss in detail

No need to worry.specific treatment is available.it depends on severity of the disease . Complete medical history is required.. Pls do online consultation with Dermatologist for detailed prescription & guidance.