Essential oils are extremely concentrated fragrant extracts from blossoms, leaves, or roots. The oils are typically diluted with carrier oils, such as sweet almond, jojoba or grape seed. Mostly, essential oils are used externally through massage therapy, as a compress on the skin, added to a bath, diffused into the air via potpourri, sachet or ceramic rings. With renewed interest in eco-friendly products, essential oils can be used to create soaps or even added to water to freshen a room while you clean.