Canine Cognitive Health Supplement. ProNeurozone is specifically formulated to protect the senior canine brain from oxidative damage and to prevent age-related behavioral changes that lower a dog's quality of life. Antioxidant formula contains ingredients which have been shown to enhance brain health. Flavored chewable tablets. Ingredients: Acetyl-L-Carnitine, Brewers Yeast, Alpha Lipoic Acid, Spirulina, Soy Lecithin, Grape Seed Extract, Omega-3 Fatty Acids, Vitamin E, Cysteine, Fruit and Herbal Extracts, Folic Acid, and B vitamins.