Oral Probiotic Formula Proprietary Blend (3 billion CFU†): Blis K12 S. salivarius L. acidophilus, L. plantarum, L. reuteri, L. paracasei. BLIS K12 is a beneficial bacteria that is naturally found within the oral cavity and is proven to promote good oral health, support immune system defense functions (key for seasonal wellness support) and protect against the proliferation of bacteria that can cause bad breath.