Origin: Widely grown nationwide. Dug in autumn to retain active saponins. 

Active Ingredients: Platycodin D ≥ 0.10%, core quality indicator. 

Classic Compatibility: Common medicinal and edible herb, collocated with Mulberry Leaf, Chrysanthemum, Almond, Boat-Fruited Sterculia, Ophiopogon japonicus, Licorice Root for respiratory conditioning.

Marker Index: Platycodin D ≥ 0.10%