Kills 99.9% of germs (Comet Bathroom Cleaner kills most household germs including Staphylococcus aureus, Salmonella enterica, Pseudomonas aeruginosa, and Escherichia coli). Dissolves soap scum & hard water film. Disinfects and cleans tough stains. Great on surfaces such as sealed fiberglass, glazed porcelain, stainless steel, chrome, synthetic marble, Formica (Formica is a registered trademark of The Diller Corporation), plastic and vinyl. For old or worn surfaces, test on a small area before use. Do not use on natural marble, stone, brass or colored grout. www.cometcleanser.com. Questions? Comments? 1-800-926-9441. Visit www.cometcleanser.com.