Bests & Worsts Reviews from Amazon

10/2022 Update: I've been using another, much less expensive but still effective brand of s. boulardii, but since that was out of stock for 10 days, I bought this again. DISAPPOINTED. The capsule is barely 3/4 full -- and yet the price is three times as high as the Jarrow product. And no, Florastor is NOT FDA approved as one reviewer claims. No probiotic or prebiotic -- or ANY supplement is FDA approved. Can't wait to get back to the better brand... Update: Florastor has removed the titanium dioxide, which they used to make the capsule white, so I'm upping my review from 1 star to 4. I'll definitely try it again. Original review: This probiotic really has possibly helped a little, but the main reason for my review is my discovery that the capsules are colored with titanium dioxide -- a potentially toxic or harmful substance. Why they add this to the product, especially without disclosing it on the BOTTLE, is beyond me. Won't be buying again.