Don't buy any at a big box store. Period. My kids take Standard Process but not every day, only when they need them, and not the same thing every time. The only "kids multivitamin" I have ever given them was Vinco's PediaVite, a liquid, when we needed it for DS2 because of dietary issues he went through for a while.
I am purging half of my earthly belongings! All items for sale can be seen HERE!