Nutri Vet Grass Guard Max liver flavored chewables are a great way to reward your dog while treating yourself to a spotless lawn. These liver flavored chewables contain a unique blend of probiotics for dogs plus other ingredients designed to neutralize high pH urine that can damage grass. Made in the USA Veterinarian formulated to prevent lawn burn and yellow areas on grass and shrubs by neutralizing nitrogenous waste maintaining a slightly acidic urine pH and binding ammonia in urine and feces Digestive enzymes amylase protease lactase lipase and cellulase facilitate intestinal nutrient assimilation to help minimize urinary nitrogen Probiotics help maintain intestinal health and diminish urinary tract nitrogen dl Methionine a sulfur containing essential amino acid helps acidify urine Directions Two chewables per 20 pounds of body weight daily