Hi Danielle. I copied your e-mail address wrong so I couldn't send this directly to you. I would think that if those litter crystals stick to you when you're sweaty than they would also stick to a ferret's moist nose (which could block it) or a wet ferret bum - which they could then lick off. I would think it's not good for them. Risa PS I use Swheat Scoop litter and love it. But every now and then I get paranoid about the dust. If anyone using this has ever had a problem with it and their ferrets please let me know! [Posted in FML issue 4104]