From the manufacturer:

A new generation of pressed powder that gives 12 hours of shine control with a luxurious silky texture. This lightweight powder mattifies skin for a fresh, translucent finish that lasts and stays color-true even under humidity and perspiration. Finely milled to sheer perfection. Translucence blends seamlessly to ensure a flawless, clean complexion. Never chalky - even on deeper skin tones.