Top 9 Lysine for Cats – L-Lysine Nutritional Supplements

As an Amazon Associate I earn from qualifying purchases.

1. In Clover


2.1 oz. 60 count, Superfoods, with L-Lysine, In Clover Spry Daily Respiratory and Ocular Support Soft Chews for Cats, and Prebiotics for a Strong Immune System

In Clover #ad - Organic prebiotics to care for the 70% of the immune system that is contained in the digestive tract, supporting the body's natural defenses from the inside out. Natural ingredients you can trust - every serving of spry contains clinically tested levels of L-Lysine, while whole blueberries and sweet potatoes provide a rich source of vitamins and antioxidants to support eye and lung health.

Preventative solution - spry is an ideal preventative solution for cats with weak immune systems, recently adopted feline friends, senior cats, and outdoor cats.1100% money back guarantee - 8 out of 10 cats approve of InClover's Spry! But if for some reason your cat is unsatisfied, please contact the vendor for a full refund. Powerful & potent - the combination of antioxidants and the natural anti-viral L-Lysine offers a natural treatment to manage symptoms of bacterial or viral infections, like FHV, feline herpesvirus, coughing, sneezing, upper respiratory infections, and eye troubles.

Scientifically formulated - spry ocular and Respiratory Support was formulated by a biochemist with natural ingredients to boost the body's defenses against viruses and restore the body's natural, healthy processes.
BrandIn Clover #ad
ManufacturerIn Clover #ad
Height7.5 Inches
Length3.3 Inches
Weight0.14 Pounds
Width5.5 Inches
Part NumberIQ0023



Maple-Flavored Lysine Gel for Cats and Kittens, Tomlyn Immune Support Daily L-Lysine Supplement, 3.5oz

TOMLYN #ad - 50+ servings per tube; Lysine provides immune support for respiratory issues for as long as needed. Cats love our tasty maple-flavored gel; easy to dose and administer, simply add to paws and/or nose. Helps manage common feline health issues; sneezing, squinting and watery, runny nose, inflamed eyes. L-lysine supplement for cats; supports normal eye function, respiratory health, strong immune system. One tsp daily provides the veterinarian-recommended amount of lysine for cats; half tsp for kittens.
BrandTOMLYN #ad
ManufacturerVétoquinol USA OTC #ad
Height7.25 Inches
Length1.5 Inches
Weight0.35 Pounds
Width0.36 Inches
Part Number450522
Warranty100% Money Back Gaurantee

3. Now Foods


1-Pound, Amino Acid, L-Lysine L-Lysine Hydrochloride Powder, NOW Supplements, Supports Collagen Synthesis*

Now Foods #ad - Pure Powder. Serving size: 1/4 level teaspoon / Contains 822 servings per container. Supports Collagen Synthesis*. Healthy Immune Function*. Essential Amino Acid.
BrandNow Foods #ad
ManufacturerNOW Foods #ad
Height4 Inches
Length6 Inches
Weight0.21 Pounds
Width5 Inches
Part Number0240

4. NaturVet


NaturVet – L-Lysine Immune Support for Cats, 60 Soft Chews – Plus Antioxidants – Supports Immune System, Respiratory & Eye Health – 30 Day Supply

NaturVet #ad - Tasty soft chews that taste like a treat, packaged with a resealable cup to ensure freshness. Wheat free, nasc, cgmp compliant, Manufactured in the USA. Can be used daily for cats over the age of 12 weeks. L-lysine is an essential amino acid that supports a healthy respiratory system, immune system, and eye health functions. L-lysine immune support soft Chews help provide daily support for your cat’s immune system and overall eye health. Specially formulated for cats that are responsive to L-Lysine.
BrandNaturVet #ad
ManufacturerGarmon Corp. / NaturVet #ad

5. Superior Labs


Dietary Supplement –500 mg Pure Active L-Lysine – 120 Vegetable Capsules – Supports Calcium Absorption – Immune System & Respiratory Health Support, Superior Labs – Best L-Lysine NonGMO

Superior Labs #ad - Absolute purity - zero synthetic additives, faster and easier. This helps to maintain muscle mass and reduce recovery time from workouts. *. If you are not satisfied with the benefits, or are unsatisfied with the product in any other way, results, please contact us and we'll gladly refund your money in 48 hours or less.

Our products are produced in facilities that have been 3rd party audited and certified for quality by NSF, one of the most stringent quality manufacturing assurance organizations in the industry. That's it - no questions, no hassle, no risk. ​. No risk and no hassle - for almost a decade, we have been delighting amazon customers. Maintains muscle mass – l-lysine can support repair and restoration of muscle tissue. In addition, adulterants - you will never see unnecessary additives such as stearates, glycerides or fillers other brands use to make manufacturing cheaper, FILLERS, dioxides, HEAVY METALS, we put all ingredients and products through rigorous testing to make sure they are 100% free of contaminants.

Unquestionable quality - all products produced in 3rd party certified nsf certified facilities - few are and can pass the stringent standards of NSF. 500 mg pure active l-lysine – superior labs’ l-lysine supports calcium absorption and immune function to maintain muscle mass and promote well-being. *.
BrandSuperior Labs #ad
ManufacturerSuperior Labs #ad

6. Quantum


Quantum Super Lysine+ Liq

Quantum #ad - Country of origin is United States. The package dimension of the product is 15. 2cml x 7cmW x 5. 1cmH.
BrandQuantum #ad
ManufacturerQuantum #ad
Height6 Inches
Length2.75 Inches
Weight0.15 Pounds
Width2 Inches
Part Number01628049



Tomyln Immune Support L-Lysine Nutritional Supplement 2.65oz each 3 Pack

TOMLYN #ad - Supplement for cat to help support normal respiratory function and maintain normal eye health. Veterinarian formulated. High levels of l-Lysine- 500 mg per chew. Pack of three 2. 65oz tomyln immune Support L-Lysine Nutritional Supplement. Tasty soft chew.
BrandTOMLYN #ad
ManufacturerTomyln #ad
Height2 Inches
Length5 Inches
Weight0.16 Pounds
Width8 Inches

8. VetriScience Laboratories


VetriScience Laboratories, Vetri Lysine Plus, 120 Bite Sized Chews, 3 Pack

VetriScience Laboratories #ad - Chicken liver flavored chew cats love. Supports immune system function, collagen formation and antibody and lymphocyte production. L-lysine is an amino acid that supports antibody, hormone and enzyme production. Packaging May Vary.
BrandVetriScience Laboratories #ad
ManufacturerVetri-Science Laboratories #ad
Height7 Inches
Length3 Inches
Weight1.2 Pounds
Width5.25 Inches
Part Number0900MPK.004

9. Alpha Paw


8oz, Made in The USA, Alpha Paw Lysine for Cats, 750mg Per Serving, Human Grade All Natural Immune System Support, Helps Maintain Eye & Respiratory Health, Best L-lysine Powder Supplement

Alpha Paw #ad - We pride ourselves on offering you the best, without fail. Skip the prescription medicine and try an all natural approach to healing. Our powder is tasteless and odorless, so your cat won't even know it's there - Every Time.

No added flavors. Treats feline herpesvirus symptoms - our l-lysine powder helps to treat symptoms such as sneezing, runny eyes, and upper respiratory infection associated with the herpes virus. That’s why we always offer a 30-day no-questions-asked money back guarantee. Made in the usa - all of our cat health care products are carefully crafted in the USA in a GMP-complaint facility. Money back guarantee - we strive to earn your complete satisfaction.

100% pure lysine - 750 mg of human grade l-lysine per scoop ensures you are giving your cat almost twice as much per serving as the leading brand - See results faster with a superior supplement! A fresh approach - our human grade lysine is an essential amino acid for your cat's overall health. We want you to be 100% satisfied with your purchase - every time.
BrandAlpha Paw #ad
ManufacturerAlpha Paw #ad
Weight0.5 Pounds