Immune Support Supplement. New! Clinically proven to boost your immune system (Beta-immune booster [yeast fermentate] is clinically proven to boost your immune system). Beta-immune booster. Antioxidant power. Naturally flavored. What is a beta-immune booster anyway? Supports key immune activity to help your immune cells to work at their best. 1 Effervescent Tablet: 500 mg of beta-immune booster; high in antioxidants (vitamins A, C & E); 500 mg of vitamin C; excellent source of zinc & selenium. Recyclable carton. Questions? Call 1-800-590-9794 or visit AirbornHealth.com. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease).