I think they are very similar. The formula is quite sheer but buildable and the liquid is a bit runny, they smell a bit funky when you first aply it. They both give your skin a slight dewy finish, all though in my case it can leave me looking oily after 2 hours if i don't powder. I do find that MUFE F&B lasts longer on my skin and the quality is a bit better, it also photographs lovely, so i do prefer MUFE over MAC. But if your trying to get more bang for your buck go with MAC.