Essential oils are natural oils derived from different parts of the plants like roots, leaves, flower, seeds, barks, stems and wood of the plant. The essential oils not at all give oily feeling which is found in other oils normally. The majority of essential oils are clear but the colour of essential oil depends on the type of plant from which the oil was made of. The essential oils are available in the market either as pure oil which is made from one plant or as a blend of different types of essential oils. The essential oils have various therapeutic values and so many people prefer it for aromatherapy, massage, inhaling etc. There are various kinds of essential oils available derived from different kinds of plants. The essential oils have the healing and mood uplifting properties and so are highly used in aromatherapy.