No Stress Refill The Beaphar No Stress Refill is specially designed to be used with the Beaphar No Stress diffuser. It is the ideal solution to soothe your cat. Reduces stress and behavioral problems, thanks to the diffusion of natural extracts of Valeriana, known for its soothing properties. The electric diffuser and its recharge (30 ml) guarantee the well-being and tranquility of cats of all ages and breeds for 4 weeks. How to manage: Unscrew and remove the protection of the recharge. Place the recharge in the diffuser and connect it to a power outlet.