I've noticed that the Garnier Fructis Nutri-Repair Ultra-Nourishing Butter Mask has mineral oil fairly high up in its ingredient list, as well as olive oil and avocado oil further down in the list. The Nutri-Repair Conditioner has palm oil near the top of the list, and olive oil and avocado oil further in the list. Do these oils get deposited on our hair and do they have any function in a hair treatment/conditioner?