From 2 to 12 months. A special composition to help build the natural defences of the Medium-sized puppy. A synergistic complex of antioxidants (vitamins E and C, taurine and lutein) to help support the dog's immune defences. Mannan-oligosaccharides used in the production of antibodies in the intestinal mucosae. Fructo-oligosaccharides to promote a balanced intestinal flora. Essential fatty acids for coat and skin formation help maintain healthy intestinal mucosae. Vitamin A and biotin for the development of skin cells. Chelated zinc to help the healing process.