A hoof and coat supplement that features biotin as a primaryingredient. Feed all classes of horses 1-2 ounces per day with feed (1 scoop = 1 ounce). In addition to 20mg of biotin, ker-a-form contains zinc, methionine, and iodine. Nutrient necessary for healthy foot andcoat. Size is 3 Pound. Dimensions are 6.75 X 6.75 X 6.5 Ground Extruded Whole Soybeans, Lecithin, Yeast Culture, Dl-Methionine, Zinc Proteinate, D-Biotin And Ethylenediamine Dihydriodide. UPC Code = 180434000088