This formulation penetrates and dissolves soap scum, ground in dirt and grime, mineral deposits, rust, lime soap build up, hard water satins, and kills household germs. Effective as a disinfectant against Pseudomonas aeruginosa, Staphylococcus aureus and streptococcus pyogenes. Quickly removes soap scum from shower tile, fiberglass, chrome and glass, toilet bowls, sinks, tubs and spas.