It works!
After years of dealing with almost daily vomit and hairballs from our short haired, but extremely moulty, tabby cat, I googled hairball supplements and Royal Canin Hairball Care came up in my search. I decided to try it and it was a success with immediate effect. It also seemed to improve my cat's skin too, as she was prone to dandruff which seemed to clear up as well. We've now been using it for probably 6 or 7 years and our cat is a healthy 13 years old!