Formic-Cal Plus is a special supplement for ant-eating species of reptiles such as Horned Lizards. This all-in-one insect dusting powder provides formic acid (40% active ingredient) to supplement obligate Ant eating species. It also contains essential vitamins, minerals and trace elements. Featuring both Retinol and Carotenoids as sources of Vitamin A. DIRECTIONS: Lightly "dust" insects before feeding. The best application method is to place insects in a plastic bag or container with Formic-Cal Plus and shake to lightly coat insects. Feed insects to your reptiles shortly thereafter. Refrigeration will extend product life. USAGE INFORMATION: This product should be considered EXPERIMENTAL. The requirements for dietary formic acid are unknown, and this product is designed to be a tool for research only. Use this product at your own risk. Formic-Cal Plus has a strong taste and may not be palatable to some species at full strength. If necessary, dilute with our Calcium Plus at decreasing ratios until accepted by specimen, or your desired test concentrations are reached.