If you want to keep your gut in check, Florajen is a great option. Look for multiple varieties at The Online Drugstore, including Florajen 3, a blend of three probiotic cultures that restores and maintains gastrointestinal health. It also supports the immune system with 15 billion live cultures per capsule. Florajen4Kids, on the other hand, helps little bodies maintain the natural balance of flora they need to function happily. This gluten-free, dairy-free vegetarian probiotic helps kids establish and maintain a healthy gut with six billion live cultures per capsule. And Florajen Acidophilus is a multi-tasking probiotic that benefits overall intestinal health, but also restores a healthy balance of vaginal flora with 20 billion live cultures per capsule.