I used to use reptivite and flukers along with a few others. I now use Rep-Cal. I have seen much better growth in babies then anything else. Reptivite has a very high amount of vit A, not good.Also the vit A to E is like 600/1. It is not a very well rounded supplement. Rep-Cal has been around since '87 and this is all they specialize in. Some calcium's are also harder to absorbed then others. Minerals also can take up to a month to be absorbed or used by the reptile.
Just my 2 pennies.
WALTER @ Mice & Things