There are millions of bacteria inside each person, forming an internal world inside us which is often referred to as 'The Microbiome'. There is much scientific research being carried out into the world of the Microbiome and its potential impact on the rest of the human body. Natures Aid PRO-100 Ultra is an intensive strength good bacteria supplement, containing 8 strains of bacteria. Each daily capsule contains a guaranteed 100 billion live organisms, using 8 extensively researched strains of bacteria: Lactobacillus acidophilus, Lactobacillus casei, Lactobacillus reuteri, Lactobacillus plantarum, Streptococcus thermophilus, Bifidobacteria lactis, Bifidobacteria longum and Bifidobacteria bifidus. Natures Aid PRO-100 Ultra bacteria have been chosen for their enhanced stability and guarantee 100 billion live bacteria per capsule. Refrigeration is optional. Natures Aid PRO-100 Ultra is Dairy Free., , Directions for Use: Take 1 capsule per day. Do not exceed the recommended intake