DESC: Sale 50% Off. A healthy intestinal tract is populated by billions of live microorganisms, which affect most every other part of the body. Research shows that maintaining an adequate level of these microorganisms (such as Lactobacillus acidophilus) helps with proper immune function, digestion and general health. Bio-Beads comes in an innovative triple-shell bead technology. The outer layer provides protection from the enviroment, making refrigeration unnecessary. The second layer resists stomach acid, allowing the inner layer to provide targeted release of the 1 billion live cultures only when it has reached the intestines.