Among the most numerous beneficial bacteria in the mouth Streptococcus salivarius is typically the first one acquired in infancy. BLIS K12? is a powerful strain of S. salivarius that when taken regularly colonizes the mouth and throat and helps to maintain the natural defense system of the main entry point of the body.* BLIS K12? has been clinically shown to support the maintenance of mouth ear nose and throat health in children.* OralBiotic? may also help to maintain fresh breath when used regularly.* BLIS K12? and the BLIS K12? logo are registered trademark of BLIS Technologies. The probiotic strains in this product have been identity-verified using DNA-fingerprinting technology.