A leading hoof supplement that helps maintain overall hoof condition and helps horses develop strong, healthy hooves. Provides 20mg of Biotin - Research has shown that 20mg of Biotin is the optimal recommended daily amount to help maintain hoof condition. Methionine and Chelated Zinc - 8,500mg of Methionine and 187mg of Zinc are included per serving for overall hoof soundness. Contains anti-oxidants to support a healthy immune system. 5 lb bag - 40-day supply.