Using your Kryolan Dual Finish powder is easy. You can choose to apply it dry for a natural, matte finish or wet for a more dewy and long - lasting look. When applying dry, just dip the included sponge or a powder brush into the powder and gently press and roll it onto your skin where you want coverage. For a wet application, dampen the sponge slightly and then pick up the powder. Be careful not to use too much water as it can make the powder clumpy. As for maintenance, keep the powder in a cool, dry place. Avoid dropping the mirror box to prevent breakage. Also, clean your sponge or brush regularly to ensure hygienic application and to maintain the quality of your makeup.