Wellmune is a powerful beta glucan extract that is clinically proven to help strengthen the immune system.* This innovative ingredient is extracted from the cell wall of a highly purified strain of Saccharomyces cerevisiae (one of the most common species of yeast). Once swallowed, Wellmune is absorbed in the digestive tract and transported to immune organs throughout the body, where it activates key immune cells.* Clinical studies show that daily use of Wellmune supports a strong and healthy immune system, and may be especially beneficial for maintaining upper respiratory health.*