Jojoba is actually excellent for your skin. I prefer rosehip seed oil though for my face.
My hair doesn't mind pumpkin seed oil, sunflower oil, coconut oil and a few other oils in conditioners. Argan is a build up culprit, like in a single use, and the problem is is that doesn't moisturize well and then my hair gets even dryer from clarifying it out. I don't really use any oil by itself though.