Over the last couple of years my lawn has been getting worse from the dog pee smell. Have tried various products on the market with no real success. Mostly they just mask the smell for a few days but it always comes back after a week or so. This one seems to have done the trick. Treated 3 weeks ago now & the smell has completely gone with no signs of it coming back! Great product – worth every penny - will certainly buy again. Fast delivery too!