Reliable cleaner effectively dissolves mineral deposits, hard-water marks and soap scum without the use of dangerous acids or hard-to-dispose-of phosphorous. Regular use helps protect porcelain, ceramic, glass and metal surfaces from discoloration. Safe, nontoxic organic-salt formula leaves protective finishes fully intact. Application: Descaler/Cleaner; Applicable Material: Ceramics; Enamel; Fiberglass; Glass; Laminates; Metal; Plastic; Vinyl; Dirt Types: Body Oils; Calcium; Grease; Grime; Lime; Mineral Scale; Rust; Soap Scum; Scent: Wintergreen.