I would hesitate to use probiotics designed for humans on snakes- since we have very different digestive enzymes & I'm not sure that adding the "wrong" probiotics would be harmless. I do NOT know for sure- I'm just urging caution & more research, & I hope someone here has more info on that. I just would NOT assume they'd all be harmless to snakes- & this might be a very good question to ask your herp vet. And at the very least, I'd compare the ingredients to those probiotics sold FOR snakes- there's at least 2 commonly sold (Bene-Bac, & Nutribac). < < < And that's what I'd be buying, personally.