--- product_id: 337668665 title: "Optimum Cat Calming Pheromone Diffuser Refill - 1 Pack" price: "฿3127" currency: THB in_stock: true reviews_count: 13 url: https://www.desertcart.co.th/products/337668665-optimum-cat-calming-pheromone-diffuser-refill-1-pack store_origin: TH region: Thailand --- # 77% less urine spraying 700 sq ft coverage 30 days continuous calming Optimum Cat Calming Pheromone Diffuser Refill - 1 Pack **Price:** ฿3127 **Availability:** ✅ In Stock ## Summary > 🐾 Transform your home into a zen den for your cats! ## Quick Answers - **What is this?** Optimum Cat Calming Pheromone Diffuser Refill - 1 Pack - **How much does it cost?** ฿3127 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/337668665-optimum-cat-calming-pheromone-diffuser-refill-1-pack) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Day Calm:** Provides 24/7 soothing support for up to 30 days per refill. - • **Effortless Use:** Plug in, relax, and watch your cat’s anxiety melt away in spaces up to 700 sq ft. - • **Harmony at Home:** 72% of multi-cat households report calmer, more peaceful interactions. - • **Safe & Non-Sedating:** Gentle on cats, kittens, people, and other pets—no drowsiness involved. - • **Stress-Free Sanctuary:** Patented pheromone formula reduces stress signs like scratching and hiding. ## Overview FELIWAY Optimum Cat Calming Pheromone Diffuser Refill delivers up to 30 days of continuous, patented pheromone-based stress relief, covering areas up to 700 sq ft. Clinically shown to reduce urine spraying by 77% and ease tension in multi-cat homes, it’s a safe, non-sedating solution trusted by thousands of cat parents to promote calm, harmonious environments for cats of all ages. ## Description FELIWAY® Optimum is our best option for reducing common signs of cat stress, such as urine spraying, scratching, fears, tension, and conflict. The patented formula in FELIWAY® Optimum helps cats with more signs of stress, in more situations, and calms cats better than ever. FELIWAY® Optimum provides up to 4 weeks of continuous calming support with each refill, helping your cat feel secure and relaxed every day. Each diffuser covers an area up to 700 square feet, it’s effective for large living areas and is suitable for cats of all ages. Easy to use, it’s the perfect way to promote your cat’s well-being and reduce stress-related behaviors.*All cats are unique. Results may vary depending on the presence of other pets and on other environmental factors**When used as directed***Based on a survey of 200 veterinarians Review: Excellent Product — Worth Every Penny! - Absolutely love Feliway\! With six cats in our household, I’ve been using Feliway Classic for several years and have consistently noticed a positive difference in their behavior\. In fact, I can usually tell when the diffusers need refilling because their activity levels and behavior noticeably change\. It doesn’t sedate them, but it definitely seems to help create a calmer, more relaxed environment\. I recently switched to the newer Feliway Optimum formula, and I’m already noticing encouraging improvements within the first 24 hours\! I’m excited to see how the results compare with the Classic version over time\. These products are certainly not inexpensive, especially when using multiple diffusers throughout the house, but the benefits we’ve experienced make them well worth the investment\. Fast shipping is another plus\. As a longtime Feliway customer and owner of six cats, I highly recommend giving this product a try\! Review: A solution to a problem that went above what I had expected! - I have three cats that got along for the most part I wouldn't say they were best buddies. There was some chasing on occasion, no one laid together but for the most part everyone did their own thing and tolerated one another. I purchased FELIWAY with the hopes to calm the chasing down when my one got diagnosed with urine crystals. After about a week I noticed the chasing stopped, she eventually healed up and within the month the FELIWAY ran out. My son came up to me one day and told me the cats started waking him up again at night. I was not aware that it had stopped. I then kept a closer eye on things and noticed the chasing during the day started again. So I ordered more just to see if it was a fluke or if indeed FEELIWAY made that much of a difference. We now are on month three of the plug-ins and the chasing has stopped, they don't wake my son up at night anymore, all three cats now lay together in cuddle puddles and my one girl who refused to go down the hallway into the bedrooms now sleeps with us at night. I can't recommend this stuff more. I have three plug ins for my 1600sqft house. Its an expense to upkeep but its been well worth it. ## Features - HELPS REDUCE SIGNS OF STRESS USING A PATENTED PHEROMONE: FELIWAY Optimum is an advanced cat pheromone diffuser that helps reduce signs of stress in cats and helps ease tension between cats.* - HELPS CATS FEEL CALM IN EVERYDAY SITUATIONS: FELIWAY Optimum is a cat calming diffuser that helps reduce stress‑related behaviors like urine spraying, scratching, hiding, and fearful reactions to change. Cat parents reported noticeable reductions in these behaviors, including a 77% reduction in urine spraying. - SUPPORTS HARMONY IN MULTI‑CAT HOMES: Helps promote calmer interactions between cats. 72% of cat parents noticed reduced tension between their cats - SAFE** AND NON-SEDATING: FELIWAY Optimum is not a sedative. It’s safe for use around cats, kittens, people and other pets. - CONTINUOUS CALMING SUPPORT: This plug‑in cat pheromone diffuser provides 24/7 support when used as directed. To get started, plug into an open outlet with the vents pointed upward, allow at least 4 feet of clearance, and follow the label instructions. ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.4 out of 5 stars 13,970 Reviews | ## Product Details - **Brand:** FELIWAY - **Color:** Translucent - **Material:** Plastic - **Recommended Uses For Product:** Home - **Scent:** Unscented ## Images ![Optimum Cat Calming Pheromone Diffuser Refill - 1 Pack - Image 1](https://m.media-amazon.com/images/I/81lRDpeKYuL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Does this work better than the Classic? I feel like my cat is getting used to the Classic and it doesn’t calm him as much as it used to.** A: I have used the multi- cat on & off for years with excellent results, but I wanted to give the optimum. Not sure if it's necessarily better (both are equally effective for us) but it definitely works faster. For your situation, switching to a different formula is worth a shot. **Q: Can the same diffuser i have for the multi cat be used for this?** A: The instructions actually say to not use another brands diffuser for the refills, and not to use another brands refills in the diffuser. It does not specifically say to not use another one of their own diffusers. I will say I used my old multi cat diffuser and it was fine and worked well. **Q: Can this be plugged in 220v or just 110v?** A: I believe it would only be safe to use in 110 volt. **Q: Can you use this in a dog friendly home with two cats?** A: You may want to contact Feliway directly for the best answer. That said, the cat pheromones shouldn't effect your dog. If your dog is a chewer I recommend plugging in somewhere the dog can't reach it since it's ball shaped (or train the dog that it's strictly off limits). ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent Product — Worth Every Penny! *by C***Y on October 12, 2026* Absolutely love Feliway\! With six cats in our household, I’ve been using Feliway Classic for several years and have consistently noticed a positive difference in their behavior\. In fact, I can usually tell when the diffusers need refilling because their activity levels and behavior noticeably change\. It doesn’t sedate them, but it definitely seems to help create a calmer, more relaxed environment\. I recently switched to the newer Feliway Optimum formula, and I’m already noticing encouraging improvements within the first 24 hours\! I’m excited to see how the results compare with the Classic version over time\. These products are certainly not inexpensive, especially when using multiple diffusers throughout the house, but the benefits we’ve experienced make them well worth the investment\. Fast shipping is another plus\. As a longtime Feliway customer and owner of six cats, I highly recommend giving this product a try\! ### ⭐⭐⭐⭐⭐ A solution to a problem that went above what I had expected! *by S***P on August 18, 2026* I have three cats that got along for the most part I wouldn't say they were best buddies. There was some chasing on occasion, no one laid together but for the most part everyone did their own thing and tolerated one another. I purchased FELIWAY with the hopes to calm the chasing down when my one got diagnosed with urine crystals. After about a week I noticed the chasing stopped, she eventually healed up and within the month the FELIWAY ran out. My son came up to me one day and told me the cats started waking him up again at night. I was not aware that it had stopped. I then kept a closer eye on things and noticed the chasing during the day started again. So I ordered more just to see if it was a fluke or if indeed FEELIWAY made that much of a difference. We now are on month three of the plug-ins and the chasing has stopped, they don't wake my son up at night anymore, all three cats now lay together in cuddle puddles and my one girl who refused to go down the hallway into the bedrooms now sleeps with us at night. I can't recommend this stuff more. I have three plug ins for my 1600sqft house. Its an expense to upkeep but its been well worth it. ### ⭐⭐⭐⭐⭐ It worked at first *by A***R on February 2, 2025* I'm giving this 5 stars because I noticed a difference in my cats within a day of using them for the first time. The fighting stopped and the bullying stopped. The anxiety symptoms went away. There was a noticeable calm in the house and it was great. Fast forward a few months and it no longer works. We are right back to where we were before we started using it. I think cats develop an immunity to whatever kind you use. These may work again for us after we have taken a break from them. The thing is, they are crazy expensive and I have never seen a sale on them anywhere. It's a lot of money to spend, hoping that they will start working again. While they initially helped with fighting and bullying issues, they never did do anything about spraying problems. In all fairness, I haven't found a brand that has helped with that. As other reviewers have mentioned, these do leak oil. I haven't had oil on the floor or on the walls but the diffuser gets covered in it and then hair gets stuck to it. You have to wipe the diffusers off once or twice a week. Again, 5 stars because they truly worked better than any brand I have tried for the first 2 months. I wouldn't give 5 stars for longevity or for price. My cats have had a little break from Feliway Optimum so I would try them again, hoping for the initial result, if they ever go on sale. ## Frequently Bought Together - FELIWAY® Optimum 30 Day Cat Calming Refill for Pheromone Diffuser, 48ml - Helps Reduce Common Signs of Stress in Cats & Kittens, Enhanced Calming - FELIWAY® Classic Cat Calming Spray, 60ml - Comforts Cats at Home and On the Go and Helps to Calm During Travel --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/337668665-optimum-cat-calming-pheromone-diffuser-refill-1-pack](https://www.desertcart.co.th/products/337668665-optimum-cat-calming-pheromone-diffuser-refill-1-pack) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-11-05*