In honesty it looks like a load of hype. I couldn’t fine a single scientific paper that shows efficacy. Take a look at Symprove or Optibac. It also depends on WHY you are taking the probiotics in the first place. There are around 1000 different species of batcteria in the gut. The idea that just these 11 are some kind of medical revolution I find highly doubtful. Have you tried pre-biotic and pro-biotic foods? Probably a much better place to start for most people (and a lot cheaper!)