Beaphar Calming Collar for cats effectively reduces problem behaviour arising from stressful situations. Using Valerian and Lavender which are often used in human healthcare to manage stress. It leaves cats feeling calm, settled and relaxed, reducing potentially destructive problem behaviour. When cats are more secure in their environment they are more relaxed thus making them better house companions. Once fitted, Valerian will be released immediately and the dog will begin to relax within approximately one hour.