Isotonix Digestive Enzyme Supplement w/Probiotics - Single Bottle (90 Servings/Bottle) Isotonix Digestive Enzyme Formula with Probiotics helps replenish the essential enzyme. It acts to supplement and maximize the activity of the body's own enzymes in s pleasant tasting. Designed to help replenish the "good" bacteria that can be harmed by things like ingestion. Results in a more complete digestive process, resulting in better nutritional absorption.