Choose Options ZENIDOG® Calming Gel Diffuser for Dogs £30.95 Choose Options ZENIDOG® Calming Gel Diffuser for Dogs £30.95 Ideal for home use, ZENIDOG® Gel Diffusers use canine appeasing pheromones and are scientifically proven to help reduce stress-related behaviours in dogs. ✔ Electric-free, no need for an electrical outlet and no energy consumption ✔ Lasts up to 2...