Vita Flex Master's Hoof Blend Hoof Health Formula for Horses, 320 Day Supply Biotin rich formula, contains 20 mg of biotin per ounce. Contains high levels of methionine and lysine, which must be present for biotin to do its job Includes three bioavailable chelated trace minerals - zinc, copper and manganese, plus silicon Each ounce also supplies 300 mg of cystine, vitamin B6 and a six-culture microbial complex for healthy digestion Blended with alfalfa meal, active dry yeast and corn oil, Master's Hoof Blend formula is a delicious addition to your horse's daily feed Highly palatable alfalfa meal, brewer's yeast and soybean oil base. Concentrated formula - give just 1 oz per day