Dior Brush Cleanser. The Brush Cleanser is a key accessory to ensure optimal quality of all Dior Backstage Brushes. It guarantees a perfect, professional makeup day after day. A quick-drying antibacterial lotion for the ultimate in practicality. Application tip: Spray the cleanser on a tissue, then wipe the brush on the wetted tissue to remove makeup residue. Brush Shop At House Of Fraser