Beta Glucans & Elderberry Immune Complex is a unique blend of immune supportive nutrients. This unique formula combines seven key active ingredients including a pure Elderberry 83:1 extract, equivalent to 4 grams of dried elderberry fruit. It has been created to help keep you healthy during those times when you may need additional immune support, such as winter months or periods of increased exercise or stress. The formulation also contains 2,000 IU’s of Vitamin D3, 400 mg of Ester-C and 15 mg of Zinc - nutrients which all contribute to the normal function of the immune system. This formula includes 250 mg of Beta 1,3/1,6 Glucans ingredients per dose.