Lemongrass oil is fantastic for treating dry, damaged hair. This unique oil's properties have the ability to penetrate the cortex of your hair follicle, filling in gaps and damage, resulting in shinier and more manageable hair. You can purchase lemongrass oil at any drug store. To use, apply generously to clean, towel dried hair. Cover with a plastic cap or plastic wrap from the kitchen. You can amplify the benefits by applying heat (use your hair dryer or sit in the hot sun).