YOOS collar is an innovation from Ceva : the first collar that helps sooth joint discomfort in dogs naturally and during one month. YOOS collar is impregnated with essentials oils (Wintergreen and Moroccan Rosemary oils) selected for their soothing action on joint discomfort. These essential oils diffuse over the whole body, penetrate through the skin and relieve your dog’s joint discomfort. Essential oils are incorporated within the YOOS collar polymer matrix and are released progressively. Thanks to this unique patented sustained release technology,YOOS collar is acting during 30 days. YOOS collar has been tested in dogs suffering from joint discomfort. These tests have confirmed that YOOS collar reduce stiffness and improve mobility. First improvements are visible after only three days.