Dr. Tobias 30 Billion probiotics are for intensive support that is needed for example, following a round of anti-biotics or other situations that may have led to depleted good bacteria. It does not contain a prebiotic and may be used on its own, or in combination with our prebiotic formula such as Dr. Tobias GutMeister.
Dr. Tobias Deep Immune Probiotic contains both a probiotic as well as a prebiotic. Prebiotic helps support gut health by going after the bad bacteria and generating more good bacteria in the process. It is a great, every day supplement.