From medicinal to cosmetic, Lemongrass oil has a lot to offer. This oil can be a natural replacement for the acetone based nail polish remover that is widely used. Because of its naturally lemony scent, it can be used as a deodorizer too. Lemongrass oil has antimicrobial activity and also a natural bug/insect repellant. You can dab a little on your toddler’s onesies to keep bugs away.