Mac is studio makeup. Studio Fix powder is a completely fill coverage make-up. People don't realize this. The stuff was made for film and TV, not daily use. It doesn't look natural, it looks like you have heavy make-up on and it makes so many people break out it is ridiculous. I used to work in cosmetics and skin care, and I would get multiple people suffering from acne, and what they all had in common is they all used this prodcut. Now don't get me wrong, plenty of them used this prroduct to cover their acne, but their acne continued to get worse and worse, until they stopped using it.