Biotin supplement that strengthens and improves new hoof growth, allowing horses to hold their shoes full term. Gen-a-horse is the most concentrated biotin supplement on the market. Formerly gen-a-hoof. Gen-a-horse is naturally palatable and easy to feed. Contains no artificial flavors, colors, additives or animal by-products. 52 week supply.Size is 4.75 Pound. Dimensions are 7.75 X 7.75 X 7.63 D-Biotin, Ground Wheat Middling s, Zinc Methionine. UPC Code = 716263010525