Lemon balm essential oil (also known as Melissa essential oil) has a great variety of possible effects. The word 'Melissa' is Greek for 'honey bee', Melissa having been planted near bee hives to produce the most delicious honey. Lemon balm oil is considered one of the most powerfully medicinal essential oils in all of aromatherapy, with a wonderfully pleasant sweet, herbaceous aroma. A great deal of oil sold as lemon balm today is actually a blend of lemongrass and citronella oils - 'true' lemon balm oil has its own unique aroma and properties.