If a good dog is making for a bad lawn, RE-DE-VERT ( Green again pro) can help. Apply this ready-to-use grass paint on pet urine spots or other discolored areas for instant color repair. Pet safe and lawn perfect, RE-DE-VERT repairs yellow or brown grass. So, your lawn looks good and green again in seconds. Earth-friendly colorant, powered by the brand preferred by turf grass professionals, Endurant.