Finishing Powder - Finishing powder helps set liquid or cream makeup and eliminate shiny skin. If you have oily skin, try using finishing powder throughout the day to keep your face looking flawlessy matte. We use arrowroot powder in our finishing powder. Arrowroot Powder is a natural powdered root starch that is white in color and very lightweight. It is derived from the tropical South American plant Maranta arundinacea. It is generally used as a substitute for cornstarch. In makeup, Arrowroot Powder provides a silky and sheer powder. Our finishing powder is made in small batches and comes packaged in a 1.4 oz pot with sifter. The sifter is easy to open and close, making it easy to throw in your purse when traveling or when you are on the go.