What it is: A comfortable, lightweight fluid foundation with a unique blend of emollients that delivers low-to-medium buildable coverage and a natural satin finish.What it does: The moisturizing long-wearing formula glides onto your face and body, providing stay-true color.Shade guide:- C: Cool (golden, olive undertones)- N: Neutral (beige undertones)- NW: Neutral Warm (pink beige undertones)- NC: Neutral Cool (golden beige undertones)How to use: Apply to your skin using a sponge or foundation brush. Blend well. Brand: M.A.C.. Style Name:Mac M.a.c Studio Face & Body Foundation. Style Number: 606334. Available in stores.