Beaphar Calming Collar for dogs effectively reduces problem behaviour caused by stressful situations in all dogs. Containing Valerian and Lavender which are often used in human healthcare to manage stress it leaves dogs feeling calm, settled and relaxed, reducing potentially destructive problem behaviour. Keeping your dog calm will help to prevent excessive barking, chewing, inappropriate urination and can be helpful for dogs with separation anxiety. Once fitted, Valerian will be released immediately and the dog will begin to relax within approximately one hour. Do not use on damaged or broken skin. Not for use on dogs below 12 weeks of age.