UltraBiotic 500 is a combination of 14 probiotic strains providing 500 billion CFU per sachet. This high strength probiotic provides support for normal healthy digestive and immune system functions in a convenient one-a-day dose. Probiotics help maintain and restore beneficial gut flora during and after antibiotic use. UltraBiotic 500 can maintain bowel regularity and relieve digestive discomfort and abdominal bloating.