Dr. Tobias Gutmeister Ultimate Prebiotic, 30 Count

Previously, this product was less expensive. I used it and believe it to be beneficial.It is one dose a day, and it says on the package that it feeds only beneficial bacteria, not harmful stuff. I believe it contains phages that target types of non-beneficial bacteria. My immune system is not very strong, and I'm prone to bacterial infections. I took a regular probiotic in morning and this in afternoon. After using this product in this way for one month, it seemed beneficial in my case. I hope to continue using it, particularly in winter.

It was recommended by a friend