Optimex Anti-Tear Stain (8.5oz / 240 gm) is designed to eliminate under eye tear stains, and staining around the mouth and feet. It reduces the staining by activating your pet’s natural immunity against stain causing bacteria.Use a tiny scoop of Optimex on your dog or cat’s food daily, and watch the tear stains vanish naturally in two weeks.The Optimex formula is made with the highest grade ingredients including Argentine grass fed beef. Veterinarian recommended for a healthy immune system.Directions for Dogs and Cats: Months 1-3 Use the recommended daily dose Months 3-6 Use daily dose every other day After 6 Months Use daily dose twice a week Note: If stains reappear, double the daily dose for 30 days.