If you struggle with dull fine hair, the best hair oil for you are Sunflower Oil, Argan Oil and Abyssinian Oil. Sunflower oil does not penetrate beyond the cuticle as it is bulkier and contains double bonds. For that reason, it doesn't reach the cortex, but instead forms more of a 'film' on the surface of the cuticle. Abyssinian oil is very lightweight, making it a brilliant option for thin, fine or greasy hair that can easily become lank if overloaded but will still give a nice shine. Lastly, Argan oil is a lightweight oil that helps with frizz and styling. Regular use of Argan oil, your hair can look shiny, silky, and healthy. As these are carrier oils, a great essential oil to add would be Chamomile Essential Oil. Chamomile oil is a great essential oil for hair because it adds shine and softness to your hair while soothing your scalp. It can even be used to naturally lighten your hair.