It's an organic supplement that provides beta-glucans, prebiotics, and vitamin C from acerola. Vitamin C contributes to the normal function of the immune system. An organic supplement suitable for celiac and lactose intolerant people, vegetarians, and vegans. Hifa da Terra products are free of heavy metals and pesticides. Why choose Bio-Defense supplement? Bio Defense contains a synergy of the five most important mushrooms (Reishi, Shiitake, Maitake, Oyster Mushroom, and Oyster Mushroom) with bioactive molecules. This new organic formula provides beta-glucans, prebiotics, and vitamins C and D. Bio-Defense, your daily supplement with pure mushrooms and vitamins C and D What bioactive substances does Bio-Defense contain? Mushrooms stand out for their content of bioactive substances such as beta and alpha-glucans. The 100% powder formulas contain only active ingredients from organic mushrooms and fruits. These are obtained by dehydrating and grinding Reishi, Maitake, Shiitake, Oyster Mushrooms, and Oyster Mushrooms. Recommended daily dose: two capsules—or as prescribed by a doctor—in the morning.