I read on here once that the GNC product "ultra 30 billion probiotics" worked for one woman. I would have phases where I felt less comfortable down there than other days. It bothered me A LOT. The difference with this GNC brand is that it puts good bacteria in your GI tract, vagina and urinary tract. The drugstore or target brands only put good bacteria in your GI tract.
After buying this my life has changed. Besides not feeling the best down there, I had major issues with my stomach previous to this which I thought were gluten issues. After taking these probiotics it was day and night for me. Literally a life saver. I swear by this product and I suggest going out to try it. You won't regret it I promise.