The principal active ingredients are believed to be allyl propyl disulphide (APDS) and diallyl disulphide oxide (allicin), although other constitutents such as flavonoids may play a role as well.

• 主要活性成分被认为是烯丙二硫化物（ APDS ）和二烯丙基二硫化物氧化氮（大蒜素） ，但其他成分，如黄酮类化合物可发挥作用。