Specification: 2%~10% Vitexin, 10:1, 20:1 Appearance: Yellow brown fine powder Test method: HPLC Loss on drying: ≤5.0% Ash: ≤5.0% Mesh size: 80 mesh Heavy metal: ≤10ppm Microbiology: Meet standard Grade available: Food grade, cosmetic grade Packing: 25kg drum Shelf life: 24 months under proper storage