A micro-fine Calcium supplement with no Vitamin D3. For species kept outdoors, and given daily exposure to natural sunlight or high levels of UVB radiation from lamps. This product is manufactured using an extremely pure source of natural Calcium Carbonate from the Mohave desert which makes it a truly unique source for food, supplement, and pharmaceutical applications. It is FDA Food Grade Certified and is micro ground to an average size of 3.5 microns, and is the finest available grind on the market, which provides the ultimate stick when dusted onto insects. DIRECTIONS: This product contains no Vitamin D-3 and should be the product of choice for species kept outdoors and given daily exposure to natural or artificial (UVB) sunlight. For species being kept without daily natural sunlight, or using moderate UVB from bulbs, we recommend Repashys SuperCal MeD. For therapeutic usage or for species with high requirements, we recommend Repashys SuperCal HyD. Dust insects using the shake and bake method before being fed. For supplementing fresh fruit and vegetables, use 1 heaping Teaspoon per Pound. It is recommended that Repashys SuperVite vitamin supplement be used at a 1:1 ratio to this product to provide a balance of essential vitamins. For an All-in-One solution, please try Repashys Calcium Plus.