The clove oil is a kind of essential oil extracted from the clove plants, Syzygium aromaticum. It is divided into three categories including bud oil, leaf oil and stem oil. Clove oil has many applications such as relieving toothache, anesthetizing or euthanizing laboratory or pet fish. It has also shown that clove oil has many health effects. For example, it has strong anti-inflammatory effect, and can protect the liver against disease. It can also be used as an antiseptic for oral infection and a broad-spectrum antimicrobial reagent. Clove oil can generally support the health of our liver, skin, hair and mouth.