The Chaga mushroom (inonotus obliquus) is also known as "Schiefer Schillerporling". It is originally native to Russia, where it grows in particularly cold regions on the tribes of birch trees and has been used in many ways for over 1000 years. Raab Bio Chaga capsules contain 200 mg chaga extract per capsule, of which 15 % (30 mg) are beta-glucane. For better bioavailability of the ingredients, there is also natural vitamin C from the acerola cherry. Vitamin C contributes to a normal function of the immune system and protecting the cells from oxidative stress. With natural vitamin C from the Acerolakirscheder Chaga Pilz (inonotus ibiliquus) is also known as "Schiefer Schiller porling". It is originally located in Russia, where it grows in particularly cold regions on the tribes of birch trees and has been used in many ways for over 1000 years.