Absolute Aromas Tea Tree Essential Oil. Buy essential oils online Ireland. Tea Tree is highly antiseptic, anti-bacterial, anti-viral and anti-fungal, thus an important oil for use in infections, problem skin, colds and flu and boosting the immune system. It is often used in hand washes and skin care. Absolute Aromas Tea Tree oil is  steam distilled from the leaves of the bush.. Benefits and features:. Antibacterial. Antifungal. Anti-infectious. Immune tonic. Antiviral. Analgesic