Thanks for the answers, but for the record I wasn't talking about "scenting" anything. I already know my pyxie wouldn't care if any food was alive or dead. She'd eat it no problem. And I certainly have no plans of breeding the lizards, and do in fact, have my own Dubia colony. I was just considering adding a bit more variety to Frog's diet, in addition to the roaches and nightcrawlers she gets. But I wanted to make sure if I could feed them as regularly as insects, or if they would've been better as occasional treats. I knew they would be nutritionally much better than mice in any case.
Looking again at lllreptile's website, they don't specify if the feeder lizards (anoles and house geckos) they sell are CB or wild caught. I don't know of course, but I would suspect wild. If that's the case then I'd be nervous about feeding them off.