Apologies if someone has already mentioned this, but handling amphibians with any type of glove is something that should be avoided.
Amphibians can have adverse reactions when exposed, regardless of the material (latex, nitrile, vinyl, etc.), or presence or absence of powder. These types of gloves can retain manufacturing residues and can perpetuate epidermal tears.
I've found that the best route is limited handling with clean hands (completely rinsed), dried, and then moistened.
~Aja