• Home
  • FELIWAY Optimum Cat Calming Diffuser Refill - 48ml

FELIWAY Optimum Cat Calming Diffuser Refill - 48ml By Feliway

12Reviews
RRP £26.99
Best Value
2 Packs
£21.20
Per Pack. First Order
Save 21 % Today!Most Popular
Following orders save 12% - just £23.85 per Packs.
  • 2 Packs - 1 parcel. Less packaging & lower carbon pawprint
  • Free delivery reminders
  • Cancel or change anytime
  • Lowest Price Guarantee - subscribers always get our best price
1 Pack
£21.99
Per Pack. First Order
Save 19 % Today!
Save more with a Bottomless Bowl Subscription!
Cancel anytime. Lowest price guaranteed

Learn more

✔ In Stock, Get it Wednesday
Order within 6hrs 13mins

"FELIWAY® is the leading behavioural product for cats, over 11 million cats have benefited from it and with over 20 years in the market it has a wealth of expertise and 24 studies which back up its claims. The products contain complex pheromones that convey impactful messages to your cat helping them cope and adjust to our lifestyles.

FELIWAY Optimum diffuser refill is the best FELIWAY answer for resolving the most common signs of stress, when used with the FELIWAY Optimum Plug-In diffuser. The new patented discovery, helps in more situations, and calms cats better than ever; it helps reduce cat scratching, urine spraying or peeing outside the litter tray, tensions & conflicts among cats, general fears, and reactions to changes. Cats feel more relaxed and safe in their house.

Clinically proven. Veterinary recommended.

FELIWAY® Optimum is BRAND NEW to the FELIWAY® range and now calms cats better than ever in more situations for enhanced serenity. It contains a new feline pheromone complex that conveys even more impactful messages to your cat which helps them cope with our modern lifestyles. Cats naturally produce pheromones, some of these are invisible calming messages. FELIWAY® Optimum contains the most advanced Feline Pheromones Complex, developed by the FELIWAY® research team.

FELIWAY® Optimum helps cats with more signs of stress including:
-Scratching
-Urine Spraying
-Tensions & Conflicts
-Environmental changes (e..g moving home, new baby)
-Fears & anxieties

Available as a home diffuser which has been designed to be plugged in and left on.

FELIWAY® Optimum has a 9.1/10 Cat owner satisfaction

FELIWAY® Optimum is suitable for any cat or kitten. Use for prevention or to tackle a stress related issue.

A refill lasts up to 30 days and needs to be replaced monthly, 1 plug suits all cats and covers a 3 bed home.

Feline Pheromones analog Complex (FPHC) 2%
Isoparaffinic hydrocarbon 48ml"

ScratchingUrine SprayingFightingSigns of tensionHidingOther signs of stressIntroducing a new cat
Feliway Optimum
Feliway Classic
Feliway Friends

Ratings & Reviews

12 reviews

  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews
13/10/2025 11:36:00 AM

Seems effective

by Peter Morgan -

I think it's working well but I'm not 100% sure how much is the product and how much is time

2/9/2025 10:08:00 PM

Essential for multi-cat

by Ruby Collins -

A must-have in our house to keep the five cats living in relative harmony. I buy them monthly

19/10/2025 12:32:00 PM

Worth the investment

by Penny Walker -

While it's not cheap the peace it brings to the household is priceless. Highly recommended

27/5/2025 11:17:00 AM

Not quite 5 stars

by Toby Stevens -

It helped a lot but didn't completely stop all the inappropriate spraying. Still a noticeable improvement

7/8/2025 8:51:00 AM

Long lasting

by George King -

Lasted a full 30 days as advertised. A reliable solution for cat anxiety and stress

28/8/2025 8:24:00 AM

Calming effect works

by Isla Henderson -

My cat's excessive scratching has reduced significantly since using this refill. It really does work

20/7/2025 11:24:00 AM

Easy to use

by Ben Reynolds -

Simple to install and doesn't emit any noticeable odour to humans. A discreet helper

26/7/2025 6:15:00 AM

Resolved territory issues

by Zoe Marshall -

Helped immensely with the tension between my two male cats. Peace restored in the house

8/7/2025 1:29:00 PM

Huge difference in my cat

by Amy Peterson -

I noticed a calming effect within a week. My anxious cat is much more relaxed now

28/5/2025 5:37:00 PM

Excellent refill value

by Kevin Carter -

This 30 day refill is easy to swap into the diffuser and offers good coverage for the month

10/3/2021 10:28 AM

Good service.

by Richard -

Excellent by return service.

8/11/2020 9:37 AM

Feliway optimum 30 day refill

by Glen -

It is very good