Normal bacterial flora differs substantially in different parts of the body. Research done over the last two decades has shown that two particular strains of lactobacillus – Lactobacillus rhamnosus and Lactobacillus reuteri are especially beneficial for preventing and treating genitourinary infections when administered intravaginally.
A more recent study found these same organism (1 capsules twice daily) to be beneficial in treating bacterial vaginosis a common and often difficult-to-treat vaginal infection. The study found that after 30 days of treatment the number of patients still having vaginosis was 0.