Optibac Every Day MAX (30). High strength meets high quality in Optibac Probiotics Every Day MAX. Containing some of the world’s most researched probiotic strains, this daily supplement provides 75 billion CFU for ultimate digestive and immune health support.. Contains:. Lactobacillus acidophilus NCF. Bifidobacterium lactis Bl-04. Bifidobacterium lactis HN019