*Developed by and for people with allergies, asthma and chemical sensitivities. *Bathrooms tend to be confined spaces, but Tub & Tile Cleaner's fume-free formulation means it can be used without producing or aggravating respiratory-related ill effects. *Over time, regular use of Tub & Tile Cleaner often produces amazing results on stains you thought were permanent (provided that the original surface sealant has not been damaged). *Consistent use of Tub & Tile Cleaner prevents nasty stains and deposits from reappearing! *No animals were used in the testing of this product.