For Healthy Digestive and Immune System Vegetarian Society Approved Dietary Supplement Protexin Health Care Gut Health Gluten Free What is a probiotic? Probiotic are live, beneficial microorganism that can positively affect your digestive and immune systems by maintaining the balance of good bacteria throughout your digestive tract. Why Bio-Kult? Bio-Kult is a scientifically developed, naturally powerful, 14 strain probiotic that supports your body's natural defenses by maintaining your gut's beneficial bacteria. Strength: Minimum 2 billion probiotic microorganisms per capsule (2 X 109 CFU/capsule), equivalent to 10 billion probiotic microorganisms per gram (>1 x 1010 CFU/gram). Concentration of 2 billion microorganisms per capsule is guaranteed throughout the shelf life. 14 protected probiotic strains - proven to survive the high acidity of stomach acid.