Susan Oludele, aka HairbySusy, swears by this oil, thanks to its nourishing cocktail of oils. “This product has 11 ingredients [including] castor oil, peppermint, lavender, and tea tree oil. This product is designed to add moisture to your scalp, and rejuvenate and repair your scalp,” she explains. What’s more, the oil doubles as a skin moisturizer to lock in moisture, especially during the colder months.