Renature K9 Immune Dog Formula, is designed for double shield protection against today's growing chemical threats. Working: Protect against oxidative damage, premature muscle fatigue, cartilage degradation, and optimize respiratory functions. Breeding: Combat oxidative assault on sperm motility, vigor-even DNA damage. Urban toxins: Shield fossil fuel exhaust damage, air pollutants, cleaning fluids, flame retardants, environmental estrogens, and more. Drugs: Counter antibiotics, chemotherapy and other harmful chemicals. Aging: Shield age - related decline from oxidative stress. Traveling: Fight traveler's diarrhea, stress and UV damage. Diet: Combat oxidative stress that foods (even raw) can impose.