CLR Brilliant Bath Cleaner is a multi-purpose and multi-surface cleaner that has a powerful foam spray formulated to quickly cut through dirt, calcium, lime, hard water deposits and soap scum. Use on most kitchen and bath surfaces including ceramic tile, shower doors, sinks, bathtubs, white grout & caulk, toilet bowls, fiberglass and kitchen countertops. Will not remove rust and do not use our cleaner on vinyl, marble, mirrors, plastic laminates, wood, fabrics, painted surfaces, colored grout or wall coverings. Part of the EPA's Safer Choice Program, recognizing the product as a safer alternative to chemicals and contains no phosphates, ammonia or bleach. Always spot test in an inconspicuous area first.