Lemongrass Essential Oil is considered as a top note that has fresh, citrus-like smell. This aroma is also known as strong, lemony, herbal, green tea type odor producing oil. Scholars on Aromatherapy study suggests that lemongrass has a very long history of use in tradition Indian medicine, particularly against infectious illnesses. lt is a powerful antiseptic and bactericide. According to some researchers, lemongrass acts as a sedative on the central nervous system.