Vine tea extract dihydromyricetin (dihydromyricetin, DMY), is a wild woody vine (vine tea) extract of the grape family Snake Vitis, also known as dihydromyricetin dihydromyricetin, dihydromyricetin, Snake grape element and so on. Dihydromyricetin dihydromyricetin is an extract of Vitis vine tea. It is the main active ingredient flavonoids in vine tea.