The purpose of Press Powder is to help to set your foundation or your concealer. If you find that you have oily skin and throughout the day you tend to get this shine. Lets day you start to Glow. This is an ideal item to dust over your face to matte down your oily skin.
You don't need to use a lot of this product, just a light dusting across your face should be all that you need.
Depending on the type of coverage that you prefer you can either use a large fluffy brush or a blending sponge if you want to apply to certain areas. For colour wise, we would recommend that you try to get as close to your foundation colour. Or if you are not using it to set foundation then the closet you can get to your natural skin tone.