Our rosemary essential oil contains castor oil, glycerin. It can improve hair texture, revitalize hair follicles, nourish hair roots, and repair the root cause of hair follicle damage. It's easy to use: wash your hair, blow dry, then take an appropriate amount of the product in your hands, then evenly apply it to the surface of your scalp, and finally massage your fingertips into your scalp to promote absorption. And it can promote hair growth.