This is a one (1) month supply. This Product is Plant and/or Mineral Based. CAN BE USED WITH PROTOCEL. It is very hard to keep the cellular structure balanced between alkaline and acid. The right balance is a pH of 6.4 if you are healthy. If your immune system is compromised you need to get your cellular pH between 7 and 7.5. Alka Drops 82 mineral helps get a person's system more alkaline.