Royal Canin Intense Hairball 34 cat food for the reduction of hairballs with exclusive anti-hairball complex, psyllium and micro-fibres to stimulate intestinal function, proven effectiveness. A cat dedicates around 30% of its day to caring for its fur. It?s rough tongue works like a brush to remove the dead hairs and particles from its coat. The swallowed hairs are either broken down or passed through the body along with the faeces. The natural removal of the hair can be supported by emptying the stomach and boosting the intestinal transit.