HabiStat Pure Calcium is a pure and natural source of calcium. It is easily digested by reptiles and amphibians. Dust insects before feeding. Sprinkle on vegetables and meat. Remember that, to enable your animal to utilise calcium in its diet, it needs adequate exposure to appropriate UVB lighting or dietary Vitamin D3 or a combination of both. Directions for use:Place a dish of dry calcium in with any animals with a high requirement (such as egg laying).You cannot overdose calcium on its own, but please avoid smothering food with it so as to make the food unpalatable to the animal. Can be mixed with other diets to increase calcium content.