Use with lizards (other than iguanas) to help prevent bone problems;Strengthens and improves shell growth in all captive turtles and tortoises;Eliminates the risk of Vitamin D3 overdose from synthetic sources by allowing reptiles the ability to regulate their own Vitamin D3 levels;Increases appetite and physical activity， while helping to induce reproductive behaviors;Beneficial to the psychological well-being of captive reptiles and amphibians