I bought the pro biotics liquid form called: Yakult.
I ran out one day and went along to Holland & Barret (uk) They told me that taking liquid form is no good. Reason is it has to be cold constantly, and by the time you buy it, get it in your car and come home, it will be room temperature and therefore the bacteria no longer works. They recommend to take the pill only bottle they sell. It is American manufactured so sure everyone can buy them.
I have stopped taking them cos I take Magnesium instead and they are working great for me. Hope this helps you??