Our Extra Strength Probiotic provides an effective dose of sixteen carefully selected beneficial microbial strains to support intestinal and immune health. The strains that are used in this diverse blend include a range of bifido- and lactobacillus bacteria that are known to preferentially colonize the upper and lower gastrointestinal tract. Our customized Microbac live transport system increases the stability and delivery of our probiotics, providing the colonization and activity of 125 billion cells to support your gut microbiome.