... -9 2.Assay 2%, 5%- 30% 3..Active Ingredient Flavones,Vitexin,Vitexin-2``-rhamnoside 4.Test methord HPL Products NameActive IngredientSpecificationTest methordHawthorn ... plants of Hawthorn genus, rose family. Its major ingredients are vitexin rhamnoside, Hyperoside and oligomeric procyanidins. Pharmacologically it can lower blood ...