#6 Brush Saver: The last bottle is for cleaning brushes between and during applications, dissolving any leftover powder. It maintains a soft and clean brush during applications. Instructions: To use the Kiara Sky Brush Saver, remove the dirty/used brush that you would like to clean and wipe off all excess product. Repeat this step with the Brush Saver brush. Swap the brushes so that the dirty/used brush is now soaking in your Brush Saver bottle. Leave these closed for at least 15 minutes before swapping the caps/brushes back to their appropriate bottles. Get stronger, lightweight and natural long-lasting nails with our easy-to-use dip powder. Kiara Sky dip powder is formulated without harsh chemicals and has added vitamins and calcium to strengthen natural nails. Dip powder can be used on natural and artificial nails.