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Immune HealthComprehensive FormulaDietary SupplementHelps Maintain Health During Seasonal ChallengesScience-Backed Quality Since 1969Combines powerful ColostruMune and ImmunEnhancer™ for immune system support.Introducing our most potent dietary defender ever with Swanson Immune Essentials! We combined two powerful ingredients for immune system support with well-known prove resistance promoters for comprehensive nutritional defense. Includes Arabinogalactan ColostruMune concentrated elderberry beta glucan and both maitake and shiitake mushrooms. It's a nutritional powerhouse!