Not a leave-in conditioner, just a normal one. I've heard that your hair will fall when you're like 30 if you put it after shower. I always do that and the result when its completely dry is frizz free soft curls!
I don't think so. Doesn't it make your hair greasy? Or at least look greasy? Do you have to wash it everyday?
I ask because you shouldn't wash your hair everyday and your body doesn't have time to build up the natural oils that are essential for healthy hair. I read somewhere every other or two days in-between is best