MAC Studio Fix Fluid Broad Spectrum Spf 15 #NC45 30ml. A delicious liquid foundation with medium to full coverage that gives a matte finish and hides impurities, pigment spots, pores and blemishes. This foundation has a soft texture that makes it easy to apply and provides a flawless finish for up to an impressive 24 hours. Ideal for those who tend to have oily skin. The oil-free formula controls excess oil and reduces shiny tendencies throughout the day.