Aromatherapy is nothing new. It is not passing fad, but an ancient tradition using nature's richness. Aromatherapy uses fragrant substances, called essential oils, distilled from plants to alter mood or improve health. In previous times, there was nothing to prove that essential oils worked, except people's reaction to it. Today, essential oils are lab tested and the results are published in scientific journals. However, this process is not. Experience defines reality, and the reality is essential oils, used correctly, work. With time, science will continue to prove this point.