Olympian Labs AHCC is a natural substance made from medicinal mushrooms containing bioactive, low molecular weight hexose molecules. At Tokyo University researchers found that AHCC supplementation clearly affects the strength of your immune system with increased natural killer cell activity and enhanced effects of killer T-Cells. Additionally, AHCC has also been reported in scientific literature to have beneficial influences on healthy blood activity and healthy blood pressure levels already within normal range. Olympian Labs endorses natural ways to heal the body and uses only the best quality ingredients in their products.