Cobalt Calcium Hydroxide Powder is a combination of calcium hydroxide and other calcium salts that can be used in the preparation of calcium paste in combination with water or a special cobalt carrier liquid (Cobalt Calcium Hydroxide Liquid). The presence of hydroxyapatite in the composition of this powder enhances the formation of a mineralized barrier. This product is completely soluble in water and is easily washed out of the root by water.