--- product_id: 149341900 title: "L-Lysine Powder for Cats" brand: "now" price: "€ 26.77" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.pt/products/149341900-l-lysine-powder-for-cats store_origin: PT region: Portugal --- # Supports respiratory health Maintains ocular health Immune system booster L-Lysine Powder for Cats **Brand:** now **Price:** € 26.77 **Availability:** βœ… In Stock ## Summary > 🐾 Elevate your cat’s health game with every scoop! ## Quick Answers - **What is this?** L-Lysine Powder for Cats by now - **How much does it cost?** € 26.77 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/149341900-l-lysine-powder-for-cats) ## Best For - now enthusiasts ## Why This Product - Trusted now brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Pure L-Lysine Formula:** Made in the USA with premium quality ingredients for trusted safety - β€’ **Eye Health Maintenance:** Promotes clear vision and bright eyes for your curious companion - β€’ **Tailored for Cats Only:** Specially formulated to meet the unique needs of your feline friend - β€’ **Vet-Approved Immunity Boost:** Clinically recommended by Dr. Barbara Royal for optimal feline health - β€’ **Respiratory Wellness Support:** Helps your cat breathe easy and stay active every day ## Overview NOW Foods L-Lysine Powder is a premium, USA-made supplement designed exclusively for cats to support their immune system, respiratory function, and eye health. Endorsed by a leading veterinarian, it’s the go-to choice for proactive pet parents who want the best for their feline companions. ## Description Product Description Now Foods Pets L-Lysine Powder helps support a healthy immune system, normal respiratory health, and also helps to maintain ocular health. Now Pets L-Lysine Powder is recommended by renowned veterinarian Dr. Barbara Royal, DVM, CVA, founder of the Royal Treatment Veterinary Centre. Ingredients L-Lysine Hydrochloride P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Directions See Label See more ## Features - Perfect for use in cats only - Helps support a healthy immune system - Also helps support normal respiratory health ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B016WG7UF8 | | Country Of Origin | USA | | Guaranteed Software Updates Until | unknown | | Is Discontinued By Manufacturer | No | | Item Model Number | 4450 | | Manufacturer | NOW Foods | | Product Dimensions | 7.62 x 7.62 x 13.97 cm; 290.3 g | ## Product Details - **Active ingredients:** None.No artificial flavors, colors or - **Brand:** NOW - **Flavour:** Nope - **Item form:** Powder - **Item weight:** 290 g ## Images ![L-Lysine Powder for Cats - Image 1](https://m.media-amazon.com/images/I/71VI3r2sHZL.jpg) ## Questions & Answers **Q: Amazon needs to show the label's ingredients so is it pure L-Lysine no fillers or additives? Thank you.** A: No fillers or additives, so it is pure L-Lysine. And to be honest when I bought the flavored powder L-Lysine made specifically for cats (different brand)- I was able to see a white powder in jar and a few streaks of tan powder- it didn't stay mixed well and the tan powder was the added flavoring. This product is white granules. I mix it in with canned food- the added flavorings I was paying A LOT extra for was never needed and I was so glad when I switched to buying from Now brands, definitely a money saver. **Q: Why does directions say twice weekly? I thought twice daily.** A: Directions say--cats 6 months and older-1/8 teaspoon twice weekly. Kittens 6 months and younger -1/16 teaspoon twice weekly.. My cat was not eating for three days and would hide under the bed. After two days of this stuff he started to come around. Now hes back to his old self. I gave him a pinch twicw a day the first week because he was so bad, now im going with the directions. Good luck,,,cap **Q: How to the feed ration?** A: I just mix it in with the cat's food.These are the manufacturer directions:* For cats 6 months or older 1/8 teaspoon twice daily* For kittens under 6 months 1/16 teaspoon twice daily **Q: Why does this product have a california proposition 65 warning?** A: California does not include pet products in Prop 65. NOW does not add this warning, but some resellers add a warning for all products sold to California businesses or residents to assure compliance with that unique law in case manufacturers aren’t testing heavy metals; NOW does this testing. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Seemed to work *by on Reviewed in the United Kingdom 26 January 2026* Seemed to work, huge bottle last long time. ### ⭐⭐⭐⭐⭐ Has vastly improved my housecat's drippy nose and sneezing *by on Reviewed in the United Kingdom 24 September 2024* Having spent 2K on seeing 5 vets over four months, this appears to have massively reduced my cat's drippy nose and sneezing and she can now obviously smell more, and as a result, is less of a fussy eater. The vets reached the point where they could offer no more help, other than perhaps a referral for a CT scan, etc. but as my cat was basically otherwise well, and she chooses to remain indoors, this felt unnecessary. We did agree to an anaesthetic and nasal camera, which reassured us that polyps/growths appear unlikely, so before going down that route, I would thoroughly recommend giving this a try. Within 5 days of just a teeny amount in her food, once a day, there was a massive improvement. ### ⭐⭐⭐⭐ Hopefully helping cat`s immunity *by on Reviewed in the United Kingdom 7 October 2025* I`ve given it 4 stars as I haven`t been using it very long, so don`t know how effective it will be. My cat has had 2 bouts of runny nose/sneezing (expensive vet visits) He hasn`t had another flare up while I`ve been using this, so will have to wait and see if it reduces his symptoms/length of flare up. He happily eats it mixed in with Lick - e - Lix, and there isn`t any strong smell to put him off ## Frequently Bought Together - NOW Foods Pet Health, L-Lysine Supplement, Powder, Formulated for Cats, NASC Certified, 8-Ounce - Purina Pro Plan Veterinary Supplements FortiFlora Cat Probiotic Supplement for Cats with Diarrhea - 30 ct. Box - Nutramax Laboratories Cosequin Joint Health Supplement for Cats - With Glucosamine and Chondroitin, 80 Capsules --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/149341900-l-lysine-powder-for-cats](https://www.desertcart.pt/products/149341900-l-lysine-powder-for-cats) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-08-29*