Stem cell therapy is just adjuvant therapy. Sem cells are derived from fat cells, plants derived and amniotic fluid. Amniotic derived has good results.   It helps in strengthening the hair root but doesn't help in growing new hair. But most important thing is you need to be started on topical minoxidil and oral finasteride. These two are must for hair growth and to be used as long as you need hairand they are FDA approved.