Eucalyptus oil is one of the most common and widely used essential oils and has good health effects. Eucalyptus oil can effectively relieve sinus infections, flu, bronchitis, colds and nasal congestion and other respiratory diseases.

Eucalyptus oil is extracted from eucalyptus leaves. It has multiple functions: antibacterial and sterilization, relieve sore throat, prevent parasites, and remove dandruff.

  Eucalyptus oils in the trade are categorized into three broad types according to their composition and main end-use: medicinal, perfumery, and industrial. The most prevalent is the standard cineole-based "oil of eucalyptus", a colorless mobile liquid (yellow with age) with a penetrating, camphoraceous, woody-sweet scent. Eucalyptus oil should not be confused with the term "eucalyptol", another name for cineole.