10.22376/ijpbs.2019.10.1.p1-12 Volume 6 Issue 4 2015 (October - December) lessThan i greaterThan Melaleuca alternifolia lessThan /i greaterThan (tea tree) originates from Australia and belongs to the family lessThan i greaterThan Myrtaceae. lessThan /i greaterThan Tea tree oil is known to have a wide range of medicinal properties that include antimicrobial, antiseptic, analgesic, anti-inflammatory, insecticidal and repellent activities. Recent research has suggested that tea tree oil may have a specific role to play in topical applications, for example, in the treatment of acne, rashes, hotspots and other cutaneous infections. Hence its wider function in pharmaceutical and cosmeceutical fields is envisaged in the near future. This review highlights the history, ecology, chemical composition and formulations of tea tree oil that may be important for its potential applications. MANJULA RAMADASS AND PADMA THIAGARAJAN Melaleuca alternifolia, Tea tree oil, Natural product, Pharmaceutics, Cosmeceutics 655-661