Ultimate FloraMax Advanced Care 100 Billion is a maximum-strength probiotic that can stand up to the challenge required for today’s patients and their digestive and immune support needs.* Ultimate FloraMax Advanced Care 100 Billion is formulated with our proprietary blend of unique GPS Probiotics (Gastrointestinal Probiotic Strains) that naturally occur in the human intestinal tract, helping to support healthy digestion, immune functions, and regularity.*