Tranquil Tails understands that pet parents want nothing more than to see their furry companions calm and relaxed. That’s why they offer the Tranquil Tails Calming Pheromone Diffuser Scented Refill Pads for Dogs. These pads are specifically designed for use with the Tranquil Tails Waterless Aromatic Pheromone Vaporizer/Diffuser (sold separately), and are perfect for soothing anxious furbabies. With a calming blend of essential oils and pheromone isolates, these pads are ideal for easing stress caused by separation, thunderstorms, fireworks, or any other stressful situation.