Some oils are good for hair, while others are not. Olive oil, for example, is a good type of oil to use on the hair, as it is packed with antioxidants and nutrients that can help to nourish and strengthen the hair. Argan oil is another great option, as it is high in vitamin E and fatty acids that can help to improve the overall health of the hair. However, some oils, such as coconut oil, can actually be harmful to the hair. Coconut oil is high in saturated fats, which can clog the pores and lead to scalp problems. It can also make the hair more susceptible to damage and frizz.