We analyzed 60 owner comments across 4 YouTube reviews, published between 2022 and 2026. Two things stand out before you even get to the comments: three of those four videos are titled around the question “does Feliway work?”, and one of them comes from a vet clinic. People are asking because the answer isn’t obvious. Among the comments, 15 mentioned Feliway directly. Of the comments with a clear opinion, 17 were positive and 5 were negative — and some of the positive ones were praising the video, not the product. The most-liked comment (34 likes) captures the whole thing: the owner plugged it in and their cat calmed way down, then added that it probably depends on your cat.
What the manufacturer claims
Feliway’s own product page says one diffuser releases pheromones continuously for up to 30 days across about 700 square feet, that results can show in as little as 14 days, that many owners see a difference within the first week, and that you should use it for at least a month. It also states that 9 out of 10 cats show an improvement in urine spraying. That last figure is presented without study details on the page, so read it as a manufacturer claim, not an established fact. We can’t verify it, and we’d rather tell you that than repeat it as if we could.
What owners actually report
The success stories that got the most agreement were about change: one owner (28 likes) bought it for a house move and said their cat was so calm they were amazed. That lines up with how Feliway positions the product — for moments when the home changes. On the other side, price was the most common complaint theme in the set (10 mentions), which makes sense for a refill you replace every month and a product that some cats simply don’t respond to. If it does nothing for your cat after a month, that’s a known outcome, not a faulty unit.
A Halloween safe room for cats
The safe room is the part that works regardless of pheromones: a closed room away from the front door with the litter box, water, a bed or hiding spot, and something that smells like home. Put the diffuser in that room. Timing matters here — if the manufacturer’s own timeline is as little as 14 days, plugging it in on October 30th is too late to judge. Plug it in at least two weeks before a known stressful night, in the room where your cat already spends the most time, and leave it on around the clock.
Placement is where people quietly sabotage it. Feliway says to keep it out from under shelves and away from doors, curtains and furniture, because the vapour needs open air to rise. Replace the refill every 30 days and the diffuser head every 6 months. If you have several cats who aren’t getting along, the manufacturer points you to its MultiCat version instead of Classic.
