Mineral oil
Unlike other oils like jojoba and argan oil that are beneficial to the scalp, mineral oil does nothing for your hair. If anything, it can clog the pores in your scalp, leading to breakouts around your hair line. Gross.
Petrolatum
This ingredient is most likely one of the hardest ones to stay away from, since it is in almost every common hair product. It is a barrier that does not allow moisture in. Think of your skin, it is an organ and as an organ requires different things to maintain, such as moisture. Without moisture the skin dries up. The same concept applies to the scalp.
