Coastal Scents The Brush Guard, Foundation Pack by Coastal Scents. $4.95. In storage - no snags or squashing. On the move - perfect packing. In use - handle stays clean and grips better. While drying - bristles dry in perfect shape. The coastal scents brush guard keeps your makeup brushes like new! This foundation pack contains five brush guards perfect for your foundation brushes that you want to protect from damage.