You might find ads for probiotics and for the most part, they’re nearly all the same. The same 10 or 15 strains of lactobaccili or bifidobacteria from the same food sources that use the same process in your body, for the most part, to pass through your system.
The makers of those probiotics will tell you that strain counts don’t matter.
However, if you have taken a long course of antibiotics and your gut diversity has been impacted, diversity does matter.
Equilibrium Probiotic is the highest strain-count probiotic on the market. It has 115 strains of human-derived beneficial bacteria, 85 of which are found in no other probiotic. In addition, unlike most of the other probiotics that are either derived from food or soil, Equilibrium is a human-derived probiotic, which means it has the potential to colonize the human gut. Many doctors are stocking it because of its success with their patients.