Zoo Med Vita-Sand is an all-natural calcium substrate that provides an excellent terrarium fill for all sorts of desert-dwelling reptiles. This vet-approved, ultra fine-grade sand increases calcium delivery and is fortified with vitamins and beta carotene for added health benefits.All natural vitamin-fortified calcium substrateExcellent for all types of desert reptilesIncreases calcium delivery to help prevent metabolic diseaseProduct of the USAZoo Med Vita-Sand features an ultra fine grade to help prevent against impaction from over-consumption. It contains no fat-soluble vitamins (which can be harmful in large doses), and has no artificial colors or color sealers.Excellent substrate for Bearded Dragons, Aromastyx Lizards, monitors, geckos (including Leopard Geckos) and desert tortoises, as well as tarantulas, scorpions, and other sand-loving critters.FAQ:Q: Can I use Vita-Sand for my Hermit CrabsA: YES! Hermit Crab Sand is the same component as Vita-Sand. This is a great substrate for Hermit Crabs!