HI Jack, I am 1 wk. pre-op, but heard that you can go to the beauty supply and get Nioxin or Nioxinal, and my hairdresser says (a guy) that it really works great! Not cheap, kinda' expensive. My hair guy takes "Biotin" 2000mg. a day to thicken up his hair. Hope this has helped, ask your Dr. before getting the Biotin, if it's ok for you. Health food stores carry it. God Bless, Marilyn So. Cal.