I'm sorry for answer you later. I used the ultimate flora probiotic, from 30 - 60 billion mg. There are some more potent with 16 strands of bacteria that is most effective. Go online and read about the probiotic or ask your doctor. I took test and it was bacteria overgrowth in my gut and intestines. Doctors prescribe me Xifaxan antibiotics. But, I took probiotic with it to help fight the bad bacteria. Because antibiotics kills both the good and bad bacteria. Zo, I have it a little help in fighting the bad. My odor went from worrible-to almost 100%