Store › Eucommia (Eucommia ulmoides) (Du Zhong) Image 1 of 1 Eucommia (Eucommia ulmoides) (Du Zhong) from $23.95 Eucommia single herb tincture. Size: Select Size 100mL 250mL 500mL 1000mL Add To Cart Added! Eucommia single herb tincture.