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. These oils can be applied directly to the hair or mixed with other hair care products. They are often used in hair treatments or as part of a regular hair care routine. Regular use of hair oils can promote healthier hair and may help prevent damage from styling and environmental factors.