Prsonally, I think the only way to get the correct and balanced pH level for every system in the body is to eat right and make sure you are getting the necessary vitamins and minerals. As long as we feed the body what it needs pH is a non-issue. All the rock minerals, artificial vitamins and contrived drinks and other cures usually wind up flushed down the toilet. The body must be able to assimilate nutrients on a cellular level. Add to proper nutrition, oxygen through deep breathing and exercise, and adequate amounts of fresh pure water, you don't need to spend a lot of money on anything else.