Pharmanex's ReishiMax GLp® is a proprietary extract of Reishi mushroom that has been standardized for potency and effectiveness. ReishiMax GLp supports your body's own natural immune system by supporting the activity of your antibodies and Natural Killer Cells.* Pharmanex's proprietary and uniquely effective cracked-spore technology unlocks reishi's active ingredient making ReishiMax GLp highly bioavailable. Cracked mushroom spores provide unique immune activity not found in other reishi products. Pharmanex's reishi mushrooms are grown in a controlled environment free of pollutants or pesticides and contains the highest levels of unique, active polysaccharides and triterpines.