What it is
Birch Polypore (Piptoporus Betulinus) is a mushroom & immune supplement. Birch polypore (Piptoporus/Fomitopsis betulina) is a birch-bracket fungus historically carried as a medicinal (notably by Ötzi the Iceman). Used in adult dosing protocols in India and internationally, it is sold as a single-ingredient supplement.