Aromatherapy is the use of natural extracted essences of aromatic plants to promote health and well-being. Aromatherapy is probably the most increasingly popular holistic treatment of our age. Since prehistoric times, aromatherapy was used to promote physical, mental and spiritual wellbeing. Almost everyone has experienced some of the aromatherapy benefits often without even realizing it. Today, modern medical science comes to agree with our ancestors and prove that essential oils can be used for therapeutic purposes.
The essential oils are absorbed into the body with two main ways, inhalation and absorption by skin. When an essential oil is inhaled, it activates the nerve cells in the nasal cavity which send impulses that stimulate the brain and produce positive feelings and emotions, while at the same time substances of the essential oils are drawn into the lungs and then quickly absorbed into the bloodstream providing physical therapeutic benefits. Moreover, when an essential oil is applied to skin (never undiluted), it penetrate the skin and enter the bloodstream this way.
It is very important that you choose pure essential oils. There are a lot of products out there that are labeled "aromatherapy" but they are produced using petrochemicals and are toxic to the endocrine system. Please be sure to check for pure essential oil.