This product works as a mildew stain remover to quickly clean and whiten even the most difficult stains. Formulated with an odor counteractant and chlorine stabilizer. Application: Mold & Mildew Stain Remover; Applicable Material: Fiberglass; Grout; Shower Doors; Tile; Vinyl; Chemical Compound: Disodium Dodecyl (sulphonatophenoxy) Benzenesulphonate; Sodium Carbonate; Sodium Hypochlorite, Solution; Dirt Types: Mildew.