Together with using the MAC studio fix powder plus foundation I use the studio fix fluid SPF 15. I have the foundation in a 30 mil glass bottle, in NC 41. Over the years I have seen MAC subtly change their packaging. MAC is a bit on the expensive side of make-up but I believe you only have one face and it should have the best products on it. The foundation is fluid and glides on easily on my skin, there is no no caking of the make-up. MAC delivers on long-lasting effects. The foundation does not rub off easily; it sets very well when used with a primer.