Eucalyptol is a chemical compound. Chemically, it is known as 1,8 Cineole. It is a monoterpenoid and a cyclic ether. It has mint like smell and a spicy, cooling taste.
Eucalyptol is the main ingredient in Eucalyptus Essential oil. It is found in Common Sage, Bay leaves, Camphor laurel, Tea Tree, Sweet Basil, Wormwood, Mugwort, Rosemary, Cannabis Sativa and Aromatic flora.

What are the functions of Eucalyptol in the Body
Eucalyptol is a colorless natural organic compound. It has Airborne Antimicrobial, Analgesic, Antiproliferative, Antiaging, Antibacterial, Antifungal, Antiinflammatory, Antispasmodic, Antiviral and Expectorant properties.
It increases the Cerebral Blood flow and reduces Headache.

What are the benefits of Eucalyptol
In Aromatherapy, Essential oils containing Eucalyptol are used widely.
Eucalyptol Oil is very effective for Respiratory diseases. It is cures Sinusitis, Asthma, Acute Bronchitis and Chronic Bronchitis.
It also cures long Respiratory illnesses as Chronic Obstructive Pulmonary Disease ( COPD ) and the common cold.
It cures nasal Congestion, Cough, Flu and Pertussis in combination with Peppermint and Rosemary.
It is used in the treatment of sore throat and infections like Laryngitis.
It is main ingredient in Cough suppressant and Mouthwashes.
It inhibits the growth of Cancer cells.
It is a potential treatment for Alzheimer's disease.
It slows the effect of Aging. It reduces the damage of oxidation caused to the cells.
It is used in the treatment of Inflammatory Bowel disease.
It can be used in the treatment of Arthritis, Rheumatism, Muscular Aches and Pains, Sprains and Plantar Fasciitis.
It is used in treatment of Shingles, Herpes, Measles, Acne, Chickenpox, Ulcers, Wounds, Boils, Burns and Cuts.
It has Antifungal effects against Candida, Fungi and Intestinal parasites that cause Diarrhea.
Cineole based Eucalyptus oil is used in flavorings, fragrances and cosmetics.
It is used as an Insect repellent and as an Insecticide.

Caution : Avoid if you consume Alcohol. Avoid if you are Pregnant or Breastfeeding.