My husband and I were viewing various websites for a mold stain remover. We came upon a website MMR Mold Stain Remover. We viewed a video which shows how to apply the MMR, within seconds the stain started to disappear. We being the skeptics that we are decided this was just too good to be true. We decided to buy 2 gallons, and were told we could return the unused gallon if this product was not satisfactory. Well we are pleased beyond our expectations. Our attic now looks like it did when it was new. Thanks to MMR and their great staff we can breathe easier knowing this problem is finally taken care of. – Sandy D., Homeowner, AR