Lordy, what brand HAVEN'T I taken?? :-) I just started a new one called Custom Probiotics. Think his site is http://www.customprobiotics.com They're VERY strong! I'm already noticing some slight differences so I'll just keep keeping on with those :-). I heard about them from a friend who visits the Healthy Awareness forum. She was using them and told me about them. She has such bad liver probs tho- so she had to discontinue them for a time. Everything she takes that gives candida die off, her liver can't handle. It's a real dilemma :-(.