Maitake D-Fraction, a proprietary extract from the Maitake mushroom (Grifola frondosa), is one of nature's most potent and effective immune system supporting constituents.* It is a unique protein-bound Beta-1,3/1,6 glucan that research has shown to support overall healthy immune function.*Mushroom Wisdom, with over 25 years of mushroom expertise, is committed to offering you the finest and most effective supplements, manufacturing them in a certified cGMP facility.Dietary ConsiderationsWheat FreeDairy/ Milk FreeGluten FreeVegetarianSoy FreeYeast FreeSugar FreePreservative FreeSalt FreeCorn FreeFree of Artificial Colors/FlavorsServing Size:20 DropServings Per Container:164Amount Per ServingMaitake Fruiting Body Extract, PD-Fraction, Standardized to contain 30% D-fraction proteoglucan18.3 mgOther Ingredients:Vegetable Glycerin, WaterDirections: 20 drops, three times a day or as directed by your practitioner.Contains NO gluten, wheat, soy, dairy, artificial color or preservatives.Warning: Keep out of reach of children. Consult a physician before using if pregnant or nursing. Store in a cool dry place. Do not use if seal is broken or missing.