Promote immunity at the cellular level with Planetary Herbals Chaga. Each tablet delivers 1000 mg of chaga, a specialized tree mushroom, that acts as a powerful immune system activator. It delivers immunomodulating polysaccharides and betulinic acid. Chaga is also a potent antioxidant for increased cellular health. Promotes healthy immune system function Natural antioxidant properties 1,000 mg of chaga mushroom per serving