Abstract Eucalyptus citriodora and E. alba leaf oils, obtained by hydrodistillation, were analyzed by GC and GC/MS. Thirty-five components were identified in the E. citriodora oil. The main components were citronellal (77.0%), neoisopulegol (7.3%), citronellol (5.9%) and iso(iso)pulegol (4.1%). Fifty-nine components were identified in E. alba oil with the main components being Î²-pinene (24.0%) and Î±-pinene (12.9%).