Though some people will see benefits quite soon after beginning the treatment, it is not usually fast acting and any benefits that appear in the 3 months following the first inoculation may not be consistent. The majority of people will see the most improvement after roughly 6 - 9 months and after adding a few supplementary doses at a minimum of 12 week intervals for NA or regular doses of TTO.
There have been cases of some people only seeing benefits after 18 months and many hosts have found their health continue to improve, years after starting the treatment.