Hair oils are natural or synthetic oils used to nourish and moisturize hair. They can help improve hair texture, reduce frizz, and add shine. Common types of hair oils include coconut oil, argan oil, and jojoba oil, each offering unique benefits for different hair types. Applying hair oil can also promote scalp health by reducing dryness and flakiness. Many people use hair oils as part of their hair care routine, either as a leave-in treatment or a pre-wash conditioner. Regular use can lead to stronger, healthier hair over time.