MAC Studio Fix Fluid Foundation SPF15 C3.5 BeautyShop361.com Sale! from 3600 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. 24 Hr Wear Buildable full matte coverage C3.5 Light Medium Peachy MAC Studio Fix Fluid Foundation SPF 15 is a modern foundation with a natural matte finish and broad spectrum protection. Oil-Free/ Shine Control