This powder looks white but it's actually "clear" and can be used with any shade of foundation.  This is the "setting" powder that is applied after you have applied the coverage to your face.  Because the foundation is waterproof and a little on the oily side, if you don't "set" it, it rubs off.  This powder keeps it in place until you take it off.  It comes with a puff, but I prefer to use a powder application brush myself.  I tried using tinted powders over the foundation, but came back to this because it doesn't change the color of the foundation like the tinted powders sometimes do.  It also lasts a long time.