Adaptil Calm Collar for Large Dogs is a pheromone-infused collar that releases a synthetic copy of the dog appeasing pheromone (DAP) — the pheromone mother dogs produce to comfort their puppies. It provides continuous calming support for dogs experiencing anxiety, fear, or stress in everyday situations.

The collar is activated by body heat and releases pheromones continuously for up to 4 weeks. Unlike diffusers, it travels with the dog — effective during walks, car trips, vet visits, and boarding. The DAP pheromone is odourless to humans and doesn't interact with medications. Suited to large dogs and designed to be worn alongside a standard collar or harness.

Pheromone collars suit dogs whose anxiety isn't confined to the house — noise phobias on walks, reactivity at the vet, or stress during travel all benefit from a calming signal that moves with the dog rather than staying plugged into a wall.