The MG Beta Glucan in NSC-100™ is micronized to an extremely small microparticulate and processed to assure non-aggregation, to provide greater ingestion and nutritional immune potentiation by the macrophages. The macrophages are the primary white immune cells that fight health invaders such as fungi, viruses, bacteria and parasites. The Scientific Truth is conclusive in current U.S. Medical School Research included in U.S. Patent (6,476,003) evaluating MG Beta Glucan and inferior competitor glucans. (The U.S. Patent (6,476,003) is printed in its entirety). Your FREE Sample with a retail value of $15 will be on the way with FREE Shipping and Handling.