New Formula! Higher Potency with Live Cultures. 6 Adult-Specific Strains. 16 Billion Cells at Time of Manufacture. Adult's Probiotic includes 6 strains of beneficial bacteria. It helps support healthy microflora in the small and large intestine promotes proper digestion provides relief from occasional intestinal discomfort and is ideal for travelers to maintain healthy flora while away from home. Since probiotics are living organisms their potency slowly decreases over time (2% per month). Keep refrigerated whenever possible and freeze to prolong shelf life.