A few drops eucalyptus oil with some coconut or olive oil gives your hair a nice moisturizing pick-me-up. This is especially great to ward off dandruff and an itchy scalp. Also, eucalyptus is used as a natural remedy for lice in replacement of chemical treatments.
Lemongrass oil can strengthen your hair follicles, so if you are struggling with hair loss or an itchy and irritated scalp, massage a few drops of lemongrass oil into your scalp for two minutes and then rinse. The soothing and bacteria-killing properties will leave your hair shiny, fresh, and odor free.