An essential oil is a liquid that is generally distilled most frequently by steam or water from the leaves, stems, flowers, bark, roots, or other elements of a plant. Essential oils, contrary to the use of the word oil are not really oily-feeling at all. Most essential oils are clear to yellow. Essential oils contain the true essence of the plant it was derived from. Essential oils are highly concentrated and a little goes a long way. Essential Oils Aromatherapy Oils are the highly concentrated, volatile, aromatic essences of plants. All the countries of the world provide essential oils, making aromatherapy a truly global therapy. Botanic Planet essential oils are true, undiluted essences extracted.