Zoo Med Reptivite without D3 8oz A complete vitamin, mineral, and amino acid complex specifically formulated for reptiles ReptiVite without D3 does not contain artificial additives or fillers like soy, yeast, or sucrose ReptiVite without D3 is calcium based to ensure healthy bone growth with the correct 2:1 calcium to phosphorus ratio It was the first reptile vitamin to include the complete amino acid complex, an essential component in protein digestion Originally developed for the San Diego Zoo to correct soft shell problems in turtles, it is now used by some of the most respected zoos and animal parks throughout the world