Feliway Optimum Enhanced Calming Pheromone 30 Day Cat Diffuser Refill

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At a Glance

  • Calming
  • All Lifestages

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About This Item

Details

  • Helps promote harmony between cats living together.
  • This drug-free solution helps reduce common signs of stress in cats, including scratching, urine spraying, tension and conflicts between cats, fears, and reactions to changes.
  • Mimics a mother cat's natural pheromones to promote a sense of calm.
  • FELIWAY is vet recommended.
  • Covers up to 700 square feet. For the best results, position the diffuser where your cat spends most of his or her time, and avoid plugging the diffuser in under shelves and behind doors, curtains, or furniture.

Ingredient Information

Instructions

Learn More About Feliway From Our Team of Experts

Looking for more? Shop All Calming Aids

Reduce Common Signs of Cat Stress

Feliway Optimum helps reduce common signs of cat stress such as urine spraying, scratching, fears, tensions and conflicts. Benefits include up to 77% less urine spraying, 72% less conflict, 73% less scratching, and 70% less stress due to change.

Drug-Free, Scent-Free Diffuser and Refill

Feliway uses the science of pheromones to send calming messages to your cat to help them feel more safe and secure. Their diffusers are drug-free, scent-free, non-sedating and won't affect humans or other pets.

Used by Millions of Cat Families

Feliway Cat Calming Pheromone Diffusers are used by millions of families around the world to help ease their cats’ stress-related behaviors.

25 Years of Feline Stress Expertise

Feliway is backed by over 25 years of feline stress expertise and scientific research.

About Feliway Optimum

Feliway Optimum is trusted and recommended by vets to calm cats in the clinic and at home.

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Frequently bought together

Questions & Answers

21 Customer Questions

it keeps leaking, how do I make it stop or prevent leaking?

Answer by Linda • Jun 20, 2024
I never had any issues with the Feliway diffusers until I started using them again this year. I have had several diffusers and they all leak. I contacted the company and they assured me it was not an issue and sent me a replacement. I STILL have issues with them leaking. I have decided to tape a small piece of foil to the bottom and that seems to help. Not sure what changed but all leak.

Does Optimum work for multiple cats ?

Answer by Chewy • Sep 03, 2021
The Feliway MultiCat 30 Day Starter Kit is more suitable for multicat homes.

What is the difference between Feliway Classic and this "Optimum" formula?

Answer by Chewy • Jan 01, 2023
Compared to Feliway Classic, the Optimum formula uses a new and advanced Feline Pheromone Complex and helps cats with more signs of stress, in more situations, and calms cats more effectively.

Does this work for a girl spayed cat who pees everywhere except her litter box!

Answer by Chewy • Jan 19, 2022
This diffuser can help common signs of stress in cats, including scratching, urine spraying, tension and conflicts between felines, and reactions to changes.
Reviews
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4.4
Rated 4.4 out of 5 stars
2496 Ratings
Terms & Conditions

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Coverage Area

74% Positive

Duration

77% Positive

Ease of Use

81% Positive

Effectiveness

77% Positive

707 Customer Reviews

Rated 5 out of 5 stars
By Sarah on Jan 13, 2026

Game changing!

My sweet former stray became a new kitty overnight! Her anxiety levels dropped significantly within a few hours of plugging in this diffuser. She is more relaxed,

My sweet former stray became a new kitty overnight! Her anxiety levels dropped significantly within a few hours of plugging in this diffuser. She is more relaxed, loving, and playful. I am so grateful she’s able to feel safer and more comfortable because of this product. PS They say only cats can smell the pheromones but I notice a powdery, slightly woody scent coming from the diffuser.

Rated 3 out of 5 stars
By Kimi on Dec 15, 2025

This works so-so with my cats

I normally buy the bSerene Advanced Calming Pheromones diffuser, but have been unable to find it. This Feliway Optimum doesn't work as well as the bSerene, but I

I normally buy the bSerene Advanced Calming Pheromones diffuser, but have been unable to find it. This Feliway Optimum doesn't work as well as the bSerene, but I needed something to try to keep my neutered 14 yr old male cat from peeing/spraying outside of the litter box. It has helped to keep the cats from fighting with each other, and they get along for the most part. It's just the urine spraying/marking that has increased since having to switch to a different pheromone diffuser. I had been using the bSerene for about 2 years, and it worked so well to calm the conflicts, and help bond the 2 females (sisters) with my male. It also helped lessen the urine marking to just a few times a week, as opposed to several times a day, every day. I tried going without any pheromone diffusers for about a month, before tensions increased and urine marking increased. I'm hoping this is just an adjustment period and everything will calm back down again (or I may need a human calming diffuser for myself haha).

Rated 3 out of 5 stars
By Louise on Jan 16, 2026

appears to make a difference

first off....its difficult to put them in the places where cats frequent the most.... since it has to have at least 4 feet clearance ... that can very very limiting....plus

first off....its difficult to put them in the places where cats frequent the most.... since it has to have at least 4 feet clearance ... that can very very limiting....plus not under tables or shelves.... so some you'll end up getting more since some of the placement causes less effectiveness.... I did buy the spray and i can really tell that's working!

Rated 5 out of 5 stars
By Kathy on Jan 6, 2026

Stress

I was told by the vet that this would help. He started pooping in my tub as soon as it happened thought he was sick but she said he was stressed over something

I was told by the vet that this would help. He started pooping in my tub as soon as it happened thought he was sick but she said he was stressed over something new. It turned out to be my other cat was sick and he was trying to tell us. We didn’t learn that until she was in stage 3 kidney Disease. But this definitely helped because he no longer pooped in tub.

Rated 5 out of 5 stars
By Kathleen on Jan 17, 2026

Replacement scratcher was replaceable

Rosie just scratches this thing to death and chases the track ball. It was very raggedy after several years. I had no idea it could be replaced. She is a rescue

Rosie just scratches this thing to death and chases the track ball. It was very raggedy after several years. I had no idea it could be replaced. She is a rescue cat and remains somewhat skitterish even after 3 years so I keep a Feliway plugged in for her in her safe room.

Rated 5 out of 5 stars
By Miranda on Dec 20, 2025

Zero Fights!

This was worked miracles! My two boy cats used to fight daily- and when I say fight I mean flat out hair flying fighting. Ever since the first day of using this

This was worked miracles! My two boy cats used to fight daily- and when I say fight I mean flat out hair flying fighting. Ever since the first day of using this ( it’s been 3 week) there hasn’t been a single fight. None. Zero. It is crazy how well it works and it has made our house much less stressful for everyone. I would 10/10 recommend and I wish I had purchased this sooner!

Rated 5 out of 5 stars
By Jessica on Oct 17, 2025

This really helps calm our cat!

Niko showed up on our porch as a 4 month old feral kitten who was malnourished and sick (1.3 pounds!). We put a box out for him to sleep in and brought him inside

Niko showed up on our porch as a 4 month old feral kitten who was malnourished and sick (1.3 pounds!). We put a box out for him to sleep in and brought him inside. He very slowly warmed up to the idea of us touching him. He does not want to be held, and wants very limited amounts of petting. If anyone comes to the door, he hides until he is certain it’s only my husband and me in the house. We decided to take a trip and hired someone to feed and care for him. I read about feliway prior, and decided it was time to give it a try. We started it two weeks before vacation and had already noticed a difference in his demeanor, he was more affectionate than usual. A few days into our trip we began getting photos of Niko cozied up with his sitter and were astonished. We purchased a second diffuser for our lower level and will continue purchasing refills. This works as described and I fully recommend if you have a cat who is scared or shy.

Rated 5 out of 5 stars
By gerardine on Jan 5, 2026

Each Color is for a different way to relieve stress

As long as this is plugged in my easily stressed male cat - for the most part -is less stressed - I also had to put him in room by himself with food, at night -

As long as this is plugged in my easily stressed male cat - for the most part -is less stressed - I also had to put him in room by himself with food, at night - with water and a liter box. - it took a couple of months and he now is with everyone full time

Rated 5 out of 5 stars
By deborah on Dec 17, 2025

I hoped it would calm down this'' wild child'' KITTEN i've inherited.

They started with two, and then there was one. MAC and CHEESE, they were called until there was just one. mac without cheese soon became mine, with no friend to

They started with two, and then there was one. MAC and CHEESE, they were called until there was just one. mac without cheese soon became mine, with no friend to play with, he's become a loner, and a wild one some times. I've noticed a change lately, he's taking his time, and warming up to me, but he still doesn't like to be touched.

Rated 5 out of 5 stars
By Cindy on Dec 18, 2025

Calmer home

My two kitties get along better with this product in the home. They play together and even give each other kisses on the head every once in while they’re fur doggy

My two kitties get along better with this product in the home. They play together and even give each other kisses on the head every once in while they’re fur doggy family passed away and after speaking with the vet there in grief. So this is also helping with that some, highly recommend the product.