Tea Tree is one of the best known and loved essential oils around the world. For decades, nearly every home medicine cabinet in Australia has held a bottle of tea tree oil, and it is affectionately known there as “first aid in a bottle”. Tea Tree oil is wonderful added to a house cleaning spray, especially in steamy, musty areas like the bathroom or a sickroom. During times of seasonal illness, Tea Tree oil in the diffuser can help clean the air in the home and is a wonderful immune system support. Tea Tree oil is also useful in clearing teenage skin blemishes.