Primal ULTRA Microbiome delivers all the benefits of Primal Defense, with the addition of 13 species of beneficial cultures. A broad-spectrum microbiome, Primal Defense Ultra has been developed to provide 15 billion live cells¹ per daily amount and 13 species of beneficial cultures including soil-based bacteria called Homeostatic® Soil Organisms (HSOs).Key Benefits:15 Billion CFU¹ Daily13 Species with HSOsSupports Normal Bowel Function†Helps Maintain a Healthy Immune System†Dietary Details:Soy FreeGluten FreeVegetarian