Ferrets are obligate carnivores, meaning that they must eat meat in order to survive. Their diet consists primarily of small rodents, such as mice and rats. Ferrets do not typically eat hair, so they do not need hairball remedies. In addition, hairball remedies can be harmful to ferrets, as they can cause vomiting and diarrhea.
If you are concerned that your ferret is having a hairball, you should take them to the vet. The vet will be able to determine if your ferret has a hairball and will recommend the best course of treatment.