Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Feliway vs Comfort Zone: Which Pheromone Is Better?

Both the Feliway and Comfort Zone pheromone diffusers are designed to make your cat feel calmer and less anxious and generally be a pleasure to be around. Whether your cat is having issues like feline aggression or urine spraying or has been hiding excessively, using a pheromone diffuser can help.

If you’re looking for the most effective pheromone diffuser on the market, the Feliway diffuser is the one to choose. It has thousands of positive reviews and has been clinically proven to work in scientific trials.

The Comfort Zone diffuser is a good choice if you’re looking for a cheaper model that lasts a while before the diffuser needs to be replaced. However, although it uses the same active ingredient as Feliway and at a higher concentration, users note that it doesn’t seem to be as effective for some reason.

While the Feliway diffuser is the most popular option on the market today, you might find that the Comfort Zone diffuser appeals to you more. Let’s look at both in more detail.

divider 1 paws

Feliway vs Comfort Zone: Quick Comparison

side by side Feliway VS Comfort Zone

Let’s look at the key points of each product.

Feliway
  • Area covered: 700 square feet
  • Refill needs replacing: every 30 days
  • Diffuser needs replacing: every 6 months
  • Active ingredient: 2% analog of feline facial pheromone
  • Cost: $$$$
Comfort Zone
  • Area covered: 400 square feet
  • Refill needs replacing: every 30 days
  • Diffuser needs replacing: every 12 months
  • Active ingredient: 5% analog of feline pheromone
  • Cost: $$

divider 1 paws

Overview of Feliway 30 Day Starter Kit Plug-In Diffuser

Feliway 30 Day Starter Kit Plug-In Diffuser

Feliway is probably the best-known name when it comes to pheromone diffusers that help keep your cat calm and comfortable at home. This brand has the highest number of reviews across all the sites that it’s sold through, so you can take that as a sign that it’s popular and seems to work for most cats!

Feliway diffusers release an artificial form of the facial pheromone that cats use to mark their territory and to feel safe in their “zone.” If your cat seems to be displaying behaviors linked to stress, like aggression, hiding, urinating outside of their box, or over-grooming, then using a Feliway diffuser can help increase their feelings of calm by increasing the level of pheromones in the air.

This diffuser is easy to use. All you need to do is plug it into your electrical outlet and let it work its magic! The refill needs replacing every 30 days.

Pros
  • Covers 700 square feet
  • Scentless for humans
  • Clinically proven
  • Number-one veterinary-recommended brand
  • Works for nine out of 10 cats
  • Easy to use
Cons
  • Expensive
  • Not safe for use around pet birds
  • Diffuser needs to be replaced frequently
  • Not recommended for multi-cat households (Feliway has a MultiCat diffuser for this purpose)

divider 1 paws

Overview of Comfort Zone 2X Pheromone Formula Calming Diffuser

Comfort Zone Calming Diffuser Kit

Comfort Zone uses the same facial pheromone as Feliway in its diffusers but at a concentration of 5% rather than 2%.

The theory behind this diffuser is exactly the same in that it releases calming pheromones into your cat’s immediate surroundings. This helps reduce feelings of stress and anxiety, reducing potential problem behaviors.

Pros
  • Higher concentration of synthetic pheromones
  • Better value for money
  • Diffuser only needs replacing once a year
  • Easy to use
Cons
  • Each diffuser only covers 400 square meters
  • Doesn’t work for all cats
  • Need multiple diffusers for large homes
  • Not recommended for multi-cat households

divider 1 paws

Feliway vs Comfort Zone: The Main Differences

Cat Diffuser Area Covered

  • Edge: Feliway

The Feliway diffuser covers 700 square meters, and the Comfort Zone only extends to 400 square meters.

Cat Diffuser Refill Replacement

  • Edge: Both

Each diffuser needs replacing every 30 days, so in this respect, there’s no difference between them. With that being said, according to manufacturers, the refill replacements are not interchangeable, which means you can’t use Feliway refills with Comfort Zone diffuser and vice versa.

Cat Diffuser Price

  • Edge: Comfort Zone

The Comfort Zone diffuser pack is significantly cheaper than the equivalent Feliway product.

Synthetic pheromone diffuser and black kitty
Image credit: Dr. Karyn Kanowski, Pangolia

Cat Diffuser Durability

  • Edge: Comfort Zone

Comfort Zone recommends replacing the diffuser unit once a year for maximum effectiveness. Feliway suggests replacing the diffuser every 6 months.

Cat Diffuser Active Ingredient

  • Edge: Both

Both diffusers use synthetic feline facial pheromones. Feliway uses a concentration of 2% and Comfort Zone 5%, but there doesn’t seem to be any evidence that a higher concentration provides more effective results, so we’d say in this case, the results are even.

Cat Diffuser Efficacy

  • Edge: Feliway

Both Feliway and Comfort Zone state that clinical trials have proven the effectiveness of their respective products. Neither the Feliway nor the Comfort Zone websites seem to provide links to these studies, which is odd if they’re as effective as they claim to be. We would expect the scientific research to be displayed.

Doing our research, we found clinical trials showing the effectiveness of Feliway, but we can’t find an equivalent for Comfort Zone. If you know of one, let us know!

Bear in mind that pheromone diffusers might not work in all cases or with all cats.

If you’re unsure of which diffuser to use, contact a vet for a recommendation.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

divider 1 paws

What the Users Say

We spent a fair amount of time examining what users have to say about both the Feliway and the Comfort Zone diffusers. Both products get good reviews, with the overwhelming majority of users recommending both. As they’re incredibly similar products that use the same active ingredient, many of the reviews are similar for both products.

Some users of Feliway suggest that within hours, their aggressive cat had become calm and easy to handle. Others say that it took up to a week for the effects to become apparent, but after that, it was a great success at helping their cat feel calmer and less anxious.

Some users found that the diffuser does heat up considerably, and as it’s meant to be plugged in continuously, they were worried that this might cause the diffuser to overheat. Feliway recommends only plugging the diffuser into grounded outlets and replacing the unit once every 6 months.

Comfort Zone also has many happy customers, though more users mention that the effectiveness can be hit and miss. Some users noticed a difference in their cat’s behavior in a short space of time, while others didn’t notice any positive effects at all.

The same comments were made about the diffuser getting hot. Some users found that if the diffuser was plugged into an outlet high up on the wall, oily residues were left on the ceiling. Other users commented that they can detect a faint oily smell from the Comfort Zone diffuser.

The general pattern seems to be that Feliway is more effective than the Comfort Zone. When it comes to decreasing your cat’s anxiety and hopefully improving their behavior, that’s what counts.

divider 1 paws

Conclusion

So when it comes to the Feliway vs Comfort Zone, the Feliway is the better option out of these two diffusers, mainly because it’s clinically proven to work in nine out of 10 cats and it gets more positive reviews than the Comfort Zone. It also covers a larger area of your home.

The Comfort Zone diffuser does offer better value for the money for the initial diffuser and refill pack. Also, as you only have to replace the diffuser itself once a year, it works out cheaper in the long run. But as it doesn’t seem to be quite as effective as the Feliway for cats, you might find that it doesn’t affect your kitty. It also covers a smaller area.

See also:

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

2 Responses

  1. This article was soo close to being what i have been searching for – a lot of verifiable information about each product. But then.. I reached the part about multi-cat households. I can not verify the part about them not being recommended for multi-cat households. Was that statement from both companies for every version except the one by Feliway marked specifically for multi-cat? Is it because it different ingredients? pheromones? percentage or concentration?
    Any additional info you have would be greatly appreciated!!

    1. Hi Bridget, thanks for reading us. These are products based on different synthetic pheromones of cats. The classic mimics the face feromones of one cat as it reinforces a sense of “familiarity and security.”The Multicat version mimics the nursing queen’s (mother cat) pheromones that send calming messages to multiple kittens. We hope this helps!

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Why Does My Cat Drink Out of My Water Glass? 8 Common Reasons

Cats are active animals that love to investigate the world around them. Because of that, it’s not uncommon to notice them sniffing things...

We Talk to Mari Lowery About Her Marvelously Creepy Cat Art

The other day, I came across a small image of some cats looking like they were plucked from a Victorian-era horror story. Reading...

How to Tell My Cat I Love Them: 10 Vet-Approved Ways

In human relationships, we spend a lot of time telling and showing our partners that we love them. Our “love language” is often...

What are the Side Effects of Prednisolone & Prednisone? Our Vet Explains

Glucocorticoids like prednisone and prednisolone have many useful functions in veterinary medicine. In fact, they have been prescribed as a treatment for nearly...

More related

8 Common Litter Box Issues & How to Fix Them

It’s a common myth that cats always use their litter boxes without issue. For the most part, cats indeed learn to use a...

9 Best Foods for Siamese Cats in 2025 – Reviews & Top Picks

Siamese cats, with their striking blue almond-shaped eyes, short coat, and distinctive color points, are known for their friendly, sociable, and affectionate nature....

Why Are Cats’ Noses Wet? Vet-Approved Feline Anatomy Facts & When to Worry

A cat’s nose can occasionally be used as a reasonable indication of their health, but this can be quite variable and should not...

How Much Does a Cat Cost? 2025 Price Guide

If you’ve been dreaming of adding a cat or kitten to your family, it’s a good idea to take a look at how...

Keep reading

Can Cats Eat Dog Food? Vet-Reviewed Nutritional Facts & FAQ

Dog food and cat food look quite similar after you open the bags. The differences seem minimal when you compare apples to apples—that is, dry kibble dog food to dry kibble cat food. But just because they look the same...

Can Cats Eat Dog Food

Why Do Cats Like Nail Files? 4 Vet-Verified Theories & Possible Reasons

It isn’t odd for cats to rub against nail files or lick them and there are several reasons why this may occur. The most likely reason is that they enjoy consuming the left-over nail dust on the file. Although there...

Groomer using nail file on cat claws

Can Cats Eat Nutmeg? Vet-Reviewed Facts & FAQ

Nutmeg is not healthy for cats in the least. If eaten in high enough amounts, nutmeg can be toxic for your feline. Luckily, the small amounts typically used in baking and cooking are fine for felines. If your cat takes...

Can Cats Eat Nutmeg

Can Cats Eat Soy? Vet-Approved Nutritional Facts & FAQ

Whether you’re a fan or not, soy products like milk, yogurt, and tofu are nutritious alternatives to dairy and other animal proteins. On the other hand, even if you or your family aren’t crazy about soy, your cat may have...

Can Cats Eat Soy

Can Cats Get Lice? Vet-Approved Facts & Treatment Tips

Lice are a common problem for most pet owners, especially if your pet enjoys the outdoors. They can cause skin disease and itchiness, affect your pet’s coat, and even cause a variety of health complications. Many cats, especially those who...

cat scratching itself

Why is My Cat Pacing? 8 Vet-Verified Reasons & How You Can Help

It can be worrying if you suddenly start to notice that your cat is pacing. If this turns into a regular occurrence rather than a one-off, it can be a sign that everything isn’t quite right with your beloved cat....

beige fawn maine coon cat on the move walking through the garden

10 Best Cat Foods Made in the USA in 2025 – Reviews & Top Picks

Choosing high-quality cat food is a hugely important decision when it comes to the health of your beloved pet. You might have been trying to shop more locally for food supplies for your own family, and it makes total sense...

Wet vs Dry Cat Food

Mastitis in Cats: Our Vet Explains Signs, Causes & Treatment

Mastitis is not frequently seen in cats. This could be due to many outdoor cats giving birth and nursing out of sight. Or perhaps it doesn’t occur as often in cats as dogs. Either way, cat mastitis is a painful...

nursing cat snow Bengal lying on the bed alone