Our little white shoe foam cleaner contains glycerin and sodium cocoylglycinate. It can penetrate deep into shoes, breaking up stubborn stains and keeping them clean for a long time. Its use method is very simple: 1. Squeeze the right amount of this product on the dyed part of the white gauze. 2. Gently wipe the upper with a cloth, sponge or special cleaning brush. 3. Let the foam cleaner sit on the surface of the shoe for a few minutes to let it do its work and soften the stain. 4. Wipe off excess skin dirt with a clean rag or paper towel. After cleaning, there is no residual foam smell, and the shoes are new and feel fresh and comfortable.