Diffusers release synthetic analogues of feline facial pheromone, mimicking the calming signal cats deposit when bunting, to reduce environment-related stress.
Evidence broadly supports modest help in multi-cat conflict, moves, and vet-visit stress, with limited effect sizes and clear individual variation.
Use it as one piece of a plan alongside resource spreading, gradual introductions, and enrichment rather than expecting a plug-in to fix behavior.
Keep it powered with timely refills and note the limited coverage; for problems like inappropriate urination, rule out disease with a vet before leaning on pheromones.
