Especially lemongrass, with it's immune system and digestive system benefits-it even reduces cellulite! Fresh lemon grass is better than powdered or dried and the most potent form is lemongrass essential oil.specially lemongrass, with it's immune system and digestive system benefits-it even reduces cellulite! Fresh lemon grass is better than powdered or dried and the most potent form is lemongrass essential oil.