This unique health and wellness formula contains vitamins A, D, E and B12 to support a healthy coat, and Zeolite Silicon (Hydrated Sodium Calcium Aluminiosilicate) to support healthy cartilage and connective tissue formation. Montmorillonite Clay, an organomineral, helps to maintain healthy intestinal microflora. Biotin, L-Lysine, Copper, Zinc, Cobalt and Manganese work together to support hoof health. Vitamin E, a fat-soluble vitamin, may help support the immune system. Vitamin C (Ascorbic Acid) functions primarily as an antioxidant.