Australian tea tree tea tree oil 10mlour antiseptic tea tree oil is a 100 pure essential oil with its antiseptic and antibacterial properties to help clean and protect the skin naturally although tea tree oil is gentle enough to be applied to healthy skin it can become sensitized to such a potent substance it is possible to use pure tea tree oil on small areas of the skin for short periods but we recommend performing a patch test before application for larger skin areas we recommend dil