ReptiFresh is the first odor eliminating substrate for use in reptile terrariums. ReptiFresh can be used with the following types of reptiles: Bearded dragons, Leopard Geckos, Uromastyx Lizards, desert species of skinks, geckos and Agamid Lizards, and Sand Boas. Can also be used as a mix-in" with Zoo Med ReptiSand Vita-Sand or Excavator clay burrowing substrate to help reduce odors. Stimulates natural digging and burrowing behavior." Easy to use and maintain. ReptiFresh can last up to 12 months before needing replacement. All natural green" product".