Product review (4 stars): YES! Finally!
These are a great way to help prevent reoccurring hairballs. I wouldn't recommend them as a treatment since you have to give alot of them to get rid of existing hairballs. But once my cat's hairball issue was under control we maintained him on these. Four stars because you'd have to give him the whole bag to get rid of hairballs.. but they are great for maintenance purposes.