Welcome to the forums. I use Reptivite as my multivitamin. The feeders have to be "lightly" dusted with 2 kinds of supplements. When your chameleon is young you will use plain calcium (no d3) at just about every feeding...... if you skip one or two days a month that's ok. You will also need Reptivite with d3 twice a month.
Your chameleon needs three supplements, plain calcium without d3, calcium with d3 and a multivitamin. When you use the Reptivite with d3 that takes care of the d3 and multivitamin all at once.
I use the Zoo Med supplements as well and have been happy with them. Three happy, heathy panther chameleons seem to agree. Hopefully the 52 babies will too, after they hatch.