the cleaning agents within the product, which were thought to be unnecessarily high and of a level that could lead to potential health problems. The study in the United Kingdom by the Welsh Regional Burns and Plastics Unit, Chepstow found: The United States Department of Health and Human Services (HHS), which lists household product information for health and safety, lists the Health & Effects information taken from the Mr Muscle product label and/or the Material Safety Data Sheet (MSDS) prepared by the product manufacturer. Mr Muscle is rated as a scale 3 (serious) for Health and a 4 (severe) for Flammability (using the established HMIS, Hazardous Materials Identification System). Other hard surface cleaners The brand includes other hard surface cleaners. Products include bathroom and toilet cleaning, glass and surface cleaners, floor cleaners, kitchen cleaners and degreasers, and more. These products are sold in Europe, Asia, Latin America, and Africa under the brand names Mr Muscle or Mr. Musculo. The company also sells similar products that Mr Muscle have in other parts of the world including the United States under the Duck and Scrubbing Bubbles brands. References External links Mr Muscle official UK website Mr Muscle named "The Most Hygienic Cleaner" in Turkey Mr Muscolo Italian Official Website NIH Household Product Database entry How Self Cleaning Ovens Work Article by HowStuffWorks.com U.S. Patent 4,167,488 Cleaning product brands Products introduced in 1986 Reckitt brands S. C. Johnson & Son brands ja:カビキラー