Our white shoe foam cleaner is carefully formulated with sodium carbonate and sodium dodecylbenzene sulfonate. Specifically designed to effectively remove dust and stains it is especially suitable for dealing with yellowing shoe edges. It is gentle and will not damage the shoes easily achieving deep cleaning and restoring the original bright white texture design of the shoes. The usage method is extremely convenient: 1. Apply an appropriate amount of the cleaner evenly to the upper of the shoes. 2. Gently wipe the upper of the shoes with a soft brush to fully dissolve the stains. 3. Finally wipe the shoe surface with a towel until it is clean. And it has a unique mild formula that quickly penetrates dirt does not damage the upper of the shoes and makes white shoes shine.