Hair oil is a product that men use for 2 reasons.The first is to keep their hair manageable,so it won't fly all over the place.The second reason is to keep it healthy as shampooing robs the hair of natural oils,so this stuff replaces it.Here in the west the best known hair oil is "Brylcream".
I either don't use any oil for my hair. I guess it will only help damage our hair. Some oils contains substance/elements that cause hair fall or split ends.
Fortunately, my hair hasn't shown any signs of being of the dry kind so I've no need for hair oil at the moment.
I don't use any oil for my hair.. I just went to a parlor for a cellophane to make it healthy and shiny