Decongestive and mentally stimulating. The most common oxide molecule in aromatherapy is 1,8 cineole which shows up on the gc/ms reports of Eucalyptus globulus and radiata, Ravintsara, Laurel Leaf, Rosemary ct 1,8 cineole, and Spike Lavender. Oxide molecules stimulate the respiratory system, helping to decrease coughing, and is a helpful anti-inflammatory for bronchitis. Shelf life is generally 2-5 years (see individual oils for approximate shelf life).

Safety notes: Severe asthmatics should avoid Eucalyptus globulus which has the highest amounts of 1,8 cineole. These oils can become skin irritants if oxidized or used past their best by date. The use of 1,8 cineole rich oils should also be avoided around infants and young children. Rosalina (Melaleuca ericafolia) is included in this group as a safer alternative for infants and children.