I've used their "perfected" xanthan gum which is a separate SKU from their regular xanthan gum. At least for gum arabic they seem to only offer one SKU, so I'm

I've used their "perfected" xanthan gum which is a separate SKU from their regular xanthan gum. At least for gum arabic they seem to only offer one SKU, so I'm guessing it's not prehydrated.