KER TriactonIngredients Construction: Contains BMC, a novel source of calcium shown to be more highly digestible than other forms of the mineral, including calcium carbonate Features & Benefits Why should I use Triacton for my horse? Contains BMC, a novel source of calcium shown to be more highly digestible than other forms of the mineral, including calcium carbonate Includes an array of other bone building nutrients, including magnesium, boron, silicone, iodine,