An ideal probiotic should have certain characteristics. The species and subspecies names and strain codes of the bacteria in the probiotic should be known. Knowing the strain code of the bacteria is the most important clue that determines what kind of effects that bacteria will have in our body.
In that case, it is not possible for us to predict what kind of effects a bacteria with an unknown strain code will have in our body. The ideal probiotic usage period is 8 weeks. Continuous, uninterrupted use of probiotics is not recommended.