Cover one side of the Powder Puff White with the chosen setting powder and massage into the palm of your hand to press the loose powder into the puff. Press and roll the puff firmly over the foundation application. When possible leave the powder to settle into the make-up for a few minutes before dusting the excess off with a powder brush. The surface can then be polished with a buffing brush to bring back a more natural appearance if desired. Kryolan Powder Puffs are reusable and can be cleaned in the washing machine.