NOW® Immune Renew is a healthy immune system supporting formulation containing Standardized Astragalus Extract and a High Beta-Glucan Proprietary Mushroom Blend. Astragalus has been shown in non-clinical studies to support a number of aspects of healthy immune function, including the enhancement of T-Cell and Natural Killer Cell activity. Natural killer cells are so named because they destroy unhealthy cells in the body virtually on contact. NOWs Proprietary Blend of eight organic mushrooms provides additional healthy immune support due to its high 1,3 Beta Glucan content. 1,3 Beta Glucans are especially valuable to healthy immune system response, though theyre increasingly lacking in todays typical diet. Scientific studies have demonstrated that the 1,3 form of Beta Glucan found in mushrooms possesses remarkable abilities to support both innate and adaptive healthy immune function. A healthy immune system is the foundation of good health. Use NOW® Immune Renew to help support healthy immune function throughout the year.* NOW® Immune Renew delivers the natural nutrient profile found in Genuine Whole Foods.Other Ingredients: Cellulose, Cellulose (capsule),Silica and Magnesium Stearate (vegetable source).Contains no: sugar, salt, starch, wheat, gluten, corn, soy, milk, egg, shellfish or preservatives. Vegetarian/Vegan Product.Do Not Eat Freshness Packet. Keep in Bottle.Vcaps® is a registered trademark of Capsugel.The Organic Mushroom Blend used in this capsule makes up 38% of the total capsule weight.Store in a cool, dry place. Please Recycle.