Origin: Distributed across China. Picked after early frost to lock in functional flavonoids. 

Active Ingredients: Rutin ≥ 0.10%, core nutritional marker. 

Classic Compatibility: Daily medicinal and edible leaf, blended with Chrysanthemum, Platycodon Grandiflorum, Ophiopogon japonicus, Colla Corii Asini, Cassia Seed for mild physical conditioning.

Marker Index: Rutin ≥ 0.10%