--- product_id: 422857205 title: "Optimum Cat Calming Diffuser Refill (6 Pack, 180 Day Supply) – Cat Pheromone Diffuser Refill for Advanced Support to Reduce Stress, Spraying, Scratching, Fighting and Hiding" price: "€ 215.49" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.es/products/422857205-optimum-cat-calming-diffuser-refill-6-pack-180-day-supply store_origin: ES region: Spain --- # 30 days continuous calm 700 sqft coverage patented pheromone tech Optimum Cat Calming Diffuser Refill (6 Pack, 180 Day Supply) – Cat Pheromone Diffuser Refill for Advanced Support to Reduce Stress, Spraying, Scratching, Fighting and Hiding **Price:** € 215.49 **Availability:** ✅ In Stock ## Summary > 🐾 Unlock the secret to a zen cat life — because calm is the new cool! ## Quick Answers - **What is this?** Optimum Cat Calming Diffuser Refill (6 Pack, 180 Day Supply) – Cat Pheromone Diffuser Refill for Advanced Support to Reduce Stress, Spraying, Scratching, Fighting and Hiding - **How much does it cost?** € 215.49 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/422857205-optimum-cat-calming-diffuser-refill-6-pack-180-day-supply) ## 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 - • **Whole-Home Calm:** Covers up to 700 square feet per diffuser, perfect for large living spaces where your cat roams and relaxes. - • **Safe & Drug-Free:** Non-sedating, odorless, and safe for all cats and kittens, ensuring calm without any side effects or impact on humans. - • **Vet-Backed Science:** Patented pheromone formula from the #1 vet recommended brand, trusted by millions of cat families worldwide. - • **Month-Long Serenity:** Each refill delivers a full 30 days of continuous calming support, keeping your cat stress-free without interruption. - • **Stress Behavior Reduction:** Clinically shown to reduce urine spraying by 77%, scratching by 73%, and tension by 72%—because your cat deserves peace. ## Overview FELIWAY Optimum 6-pack refills provide up to 30 days of continuous, drug-free calming pheromones per vial, covering large areas up to 700 sqft. Clinically proven to reduce common cat stress behaviors like spraying, scratching, and anxiety, this patented formula is the #1 vet recommended solution trusted by millions of cat owners worldwide. ## 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: Great product that eliminated and over-licking issue with my cat - My cat had been dealing with a pretty serious over‑licking issue. She was removing patches of fur, and it was clearly stressing her out. After a vet visit, I was told it was likely a nervous behavior and was recommended to try the Feliway calming pheromone diffusers. I’m really glad I did. Once I started using this product, the constant licking stopped, and she’s been noticeably happier and more relaxed overall. It wasn’t an overnight change, but the improvement has been steady and obvious. The 6‑pack value bundle is great for keeping the diffusers running without interruption, and for us, it’s absolutely been worth it. Seeing her comfortable and calm again has made a huge difference. The diffusers don't make any noise and there is no scent. They work great and last about a month. The diffuser fits in a standard outlet and looks like a typical home fragrance type of diffuser. Review: It’s helpful for cats that are stressed - I have been very impressed with this product. I have been using it since February 2026 and my cat seems to be much less stressed than before we started with the diffuser. I plan to keep using it even though it is expensive. ## 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. - #1 VET RECOMMENDED BRAND***: FELIWAY Optimum uses patented formula from the #1 vet recommended brand, and is backed by 30 years of feline stress expertise and scientific research ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09V9WC1S1 | | ASIN | B09V9WC1S1 | | Age Range Description | All Life Stages | | Best Sellers Rank | #232 in Pet Supplies ( See Top 100 in Pet Supplies ) #1 in Cat Relaxants | | Brand Name | FELIWAY | | Breed Recommendation | All Breed Sizes | | Color | Clear | | Customer Reviews | 4.4 4.4 out of 5 stars (13,413) | | Date First Available | March 10, 2022 | | Date First Available | March 10, 2022 | | Directions | FELIWAY Optimum refills provide calming pheromones continually for up to 30 days in a 700 square foot area. We recommend using an additional diffuser if the room is bigger than 700 square feet. We recommend plugging in the FELIWAY Optimum diffuser in the room where you cat spends the most time. Try not to plug the diffuser under items (e.g. shelves) or close to objects (e.g. behind curtain or door… | | Included Components | Refill | | Item Package Dimensions L x W x H | 6.22 x 4.02 x 3.82 inches | | Item Weight | 15.2 Ounces | | Item model number | D92160B | | Item model number | D92160B | | Manufacturer | Ceva Animal Health | | Manufacturer | Ceva Animal Health | | Model Name | FELIWAY Optimum Cat, Enhanced Calming Pheromone Diffuser, 30 Day Refill - 6 Pack | | Number of Items | 1 | | Package Dimensions | 6.22 x 4.02 x 3.82 inches; 15.2 ounces | | Size | 6-Pack | | Specific Uses for Product | Behavior, Indoor | | Target Audience Keyword | Cats, house-cats | ## Images ![Optimum Cat Calming Diffuser Refill (6 Pack, 180 Day Supply) – Cat Pheromone Diffuser Refill for Advanced Support to Reduce Stress, Spraying, Scratching, Fighting and Hiding - Image 1](https://m.media-amazon.com/images/I/81c0nA7-xsL.jpg) ![Optimum Cat Calming Diffuser Refill (6 Pack, 180 Day Supply) – Cat Pheromone Diffuser Refill for Advanced Support to Reduce Stress, Spraying, Scratching, Fighting and Hiding - Image 2](https://m.media-amazon.com/images/I/81OkRWwcsNL.jpg) ![Optimum Cat Calming Diffuser Refill (6 Pack, 180 Day Supply) – Cat Pheromone Diffuser Refill for Advanced Support to Reduce Stress, Spraying, Scratching, Fighting and Hiding - Image 3](https://m.media-amazon.com/images/I/71LElR7nv2L.jpg) ![Optimum Cat Calming Diffuser Refill (6 Pack, 180 Day Supply) – Cat Pheromone Diffuser Refill for Advanced Support to Reduce Stress, Spraying, Scratching, Fighting and Hiding - Image 4](https://m.media-amazon.com/images/I/818YX7EpPtL.jpg) ![Optimum Cat Calming Diffuser Refill (6 Pack, 180 Day Supply) – Cat Pheromone Diffuser Refill for Advanced Support to Reduce Stress, Spraying, Scratching, Fighting and Hiding - Image 5](https://m.media-amazon.com/images/I/71xYWRcoKXL.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 ### ⭐⭐⭐⭐⭐ Great product that eliminated and over-licking issue with my cat *by J***S on February 8, 2026* My cat had been dealing with a pretty serious over‑licking issue. She was removing patches of fur, and it was clearly stressing her out. After a vet visit, I was told it was likely a nervous behavior and was recommended to try the Feliway calming pheromone diffusers. I’m really glad I did. Once I started using this product, the constant licking stopped, and she’s been noticeably happier and more relaxed overall. It wasn’t an overnight change, but the improvement has been steady and obvious. The 6‑pack value bundle is great for keeping the diffusers running without interruption, and for us, it’s absolutely been worth it. Seeing her comfortable and calm again has made a huge difference. The diffusers don't make any noise and there is no scent. They work great and last about a month. The diffuser fits in a standard outlet and looks like a typical home fragrance type of diffuser. ### ⭐⭐⭐⭐⭐ It’s helpful for cats that are stressed *by P***S on May 10, 2026* I have been very impressed with this product. I have been using it since February 2026 and my cat seems to be much less stressed than before we started with the diffuser. I plan to keep using it even though it is expensive. ### ⭐⭐⭐⭐ Really works both cats *by L***N on April 23, 2026* Works well ## Frequently Bought Together - FELIWAY Optimum 6 x 30 Day Cat Calming Refills for Pheromone Diffuser, 6 x 48ml Value Pack - 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.es/products/422857205-optimum-cat-calming-diffuser-refill-6-pack-180-day-supply](https://www.desertcart.es/products/422857205-optimum-cat-calming-diffuser-refill-6-pack-180-day-supply) --- *Product available on Desertcart Spain* *Store origin: ES* *Last updated: 2026-05-20*