Essential oils are generally
very complex chemically, containing many different substances
and compounds. Some experts have theorized that essential oils
are the lifeblood of a plant, and contain compounds that the
plant uses to fight infections and drive away germs and parasites.
Scientific research has isolated hundreds of chemicals in essential
oils, and has shown many essential oils to have anti-bacterial,
anti-fungal, and anti-parasitic properties.
Some essential oils
contain over 200 identified chemical substanes.