An Advanced probiotic multi-strain formula recommended by Nutritional Therpaists Bio-Kult contains 14 strains of beneficial probiotic bacteria, which means the probiotic strains reach more areas of your gut whilst surviving the harsh acidic environment of the stomach. Bio-Kult probiotic formula is ideal for adults and children. It is easy to store (it does not require refrigeration) making it ideal for taking on journeys or on holiday.