Best Liquid Cat Multivitamins in 2026

Help Your Feline Feel Purrfect - Zesty Paws Aller-Immune Bites are immunity supporting functional pet supplements with ingredients that promote a healthy immune system response for your kitty!

Featuring EpiCor - Each premium chew contains 35 mg of EpiCor, A natural yeast (Saccharomyces cerevisiae) fermentate that supports the immune system for feline pets.

Made with L-Lysine - This ingredient is an amino acid that enhances animal immune system response and may also support healthy eye function to support your cat's health.

Daily L-Lysine supplement for cats helps support a strong immune system and eye & respiratory health

Helps manage common feline health issues such as sneezing, runny nose and watery, inflamed eyes

Lysine powder for cats & kittens provides specially-formulated immune support for as long as needed

L-Lysine supplement for cats; supports normal eye function, respiratory health, strong immune system

Helps manage common feline health issues; sneezing, runny nose, squinting and watery, inflamed eyes

One to two scoops daily provides support for the immune and respiratory system for kittens and cats

I 'Sea' Something Yummy! - Solid Gold SeaMeal is a kelp-based dog and cat supplement that mixes with your pet's favorite wet or dry food for the best digestive, immune system, skin, and coat support.

Nutrient Rich Powder - Utilizing seaweed, earth's original Superfood, this SeaMeal combines red, green and brown seaweed species (such as kelp) to provide amazing wellness benefits for dogs and cats.

Enzyme Support for Digestion - This premium and nourishing powder features digestive enzymes to support gut health for your dog or cat.

L-LYSINE FOR CATS SUPPLEMENT POWDER - 900 mg of l-lysine hydrochloride per scoop, natural chicken liver flavor for picky eaters. Safe for kittens, adults & senior cats of all breeds. Sprinkle l-lysine immune system support supplements over cat food once per day.

CAT IMMUNE SUPPORT SUPPLEMENT - Our best l-lysine cats supplement powder works as a pet immune system booster without the use of cat meds or antibiotics. Helps treat feline herpes, herpesvirus, cough, cat sneezing, runny nose, congestion, colds.

CAT RESPIRATORY SUPPORT - Our powerful cat vitamins and supplements contain 2x more cat lysine supplement amino acids per scoop for optimal cat health. L-Lysine powder for cats is a natural upper respiratory infections treatment for cats & kittens & a cat cold medicine decongestant.

Lysine is recommended for cats that need added immune support, respiratory health support and for other conditions that are responsive to lysine

Lysine is an essential amino acid for felines that must be ingested through food or supplements

Lysine is often Recommended to support immune health-especially when cats are being boarded or live in a multi-cat household

NATURAL VITAMIN - a powerful blend of supergreens like wheatgrass and seaweed that provide essential vitamins and minerals for healthy skin, coat, and energy levels. Our pet multivitamins contain all the necessary nutrients that dogs and cats need to thrive, making it the perfect choice for anyone looking for a high-quality multivitamin for dogs and cats.

ORGANIC: Our organic supplements are designed to promote pet and environmental health, ensuring they are free from artificial ingredients and chemical processing. Made with organic ingredients and processed without any harsh chemicals or preservatives.

REAL SUPERFOODS: Made with real superfoods and no GMOs or grains, making them a delicious and healthy choice for your furry friend. Can be easily sprinkled on top of any diet. Pets love the taste and the natural ingredients.

Developed to provide natural botanicals to your dog and cat.

VETERINARIAN RECOMMENDED: NOW Pets Immune Support is a health supplement formulated by renowned veterinarian Dr. Barbara Royal, DVM, CVA, founder of The Royal Treatment Veterinary Center.

NASC CERTIFIED: NOW Pets has been certified by the National Animal Supplement Council (NASC), an organization that protects and enhances the integrity of the animal health product industry by promoting the well-being of non-human food chain animals that are given animal health supplements by their owners.

✅ BETTER QUALITY OF LIFE. Add SPARK to your pet's food every day and watch your pet thrive! A great-tasting, all-in-one food-topper with 43 natural ingredients that your pet will love.

✅ DIGESTIVE HEALTH & IMMUNE SUPPORT. Prebiotics, probiotics, and digestive enzymes support healthy digestion and help maintain gut flora balance. A healthy intestinal microbiome is vital to your pet's immune system defenses.

✅ ENERGY & VITALITY. Amino acids, protein from grass-fed beef liver, healthy greens from alfalfa, barley, and wheat grass, and superfoods including spirulina and chlorella, all help maintain cellular energy and repair to support your pet's excellent health and vitality.

Supports Overall Health - Made with beneficial vitamins and minerals that complement your dog's diet.

Amounts that Count - Each serving contains 500mg Taurine and 100mg Vitamin C for peak conditoin.

Supports Skin Health - Vitamin A supports normal skin and mucous membrans while fighting free radicals

Cat Supplements for indoor cats & Veterinarian Pharmacist approved - help issues related to cat asthma, immunity & overall cat health. Trust a natural all-in-1 cat multivitamin & that could replace cold medicine for cats. Great senior cat vitamins!

Cat Lysine - essential to cat allergy medicine for cats & upper respiratory system. All-natural L Lysine powder for cats in a chewable treat to help address symptoms of feline infections, congestion, eye inflammations & discharge.

MADE IN THE USA Vitamin For Cats -Krill Oil helps reduce risk of feline heart disease & joint pain w/ Omega-3, the best cat vitamins for older cats lysine B12 & Folic Acid. Help with cat cold medicine sneezing. Great under the weather cat supplement!

Lysine Plus highly palatable oral granule powder formulated is recommended by veterinarians for feline conditions that are responsive to Lysine. L-Lysine Powder helps support a healthy system, normal respiratory health, and also helps to maintain ocular health. Delivers veterinarian-recommended amount of Lysine: cats = 1 Scoop; 1 or 2x daily, kittens = 1/2 Scoop; 1 or 2x daily

Dimethylglycine (DMG) DMG is an intermediary metabolite that improves cellular metabolism especially under stressful conditions. DMG provides the building blocks for synthesis of vitamins. It also supports all aspects of response.

Lysine Plus may help manage signs associated with the Feline, issues such as sneezing, watery and inflamed eyes, and runny noses

PROMOTES HEART, EYE, AND BRAIN HEALTH WITH TAURINE – Taurine is an essential amino acid that plays a key role in canine immune and cardiac function health.

35 ESSENTIAL VITAMINS & MINERALS – Provides vital nutrients not always found in dog’s daily pet food.

SUPPORTS MUSCULATORY & IMMUNE SYSTEM WITH AMINO ACIDS L-CARNITINE & L-CYSTEINE– Essential Amino Acids are the building blocks to give dogs the support they need to build and maintain healthy muscles and immune system.

🐈 Immune Support for Cats: Fuel your pet with the supplements they need to remain healthy and boost their immune system with cat health supplements that add much-needed nutrients and amino acids to continue being active.

🌿 L-Lysine: L-Lysine is an essential amino acid that your pet’s body doesn’t produce, so this supplement is the perfect aid that helps support your pet’s immune system so that it can function normally and produce antibodies. L-Lysine also helps maintain healthy tissue and supports respiratory health.

✨ Directions for Administration: The L-Lysine is in a palatable fish-flavored base making this gel easy to give to your cat. Administer orally. Place a small amount on the cat's nose to stimulate taste interest. Once interest has been established, a syringe or teaspoon may be used. Can also apply gel directly on the cat's paw and allow the cat to lick off.

COMPREHENSIVE SUPPORT: organic product that will help your pet to be healthy and feel great with the power of nature and a balanced composition.

ALL NATURAL ALTERNATIVE TO CHEMICAL ANTIBIOTICS: the newest and improved formula! No artificial additives! Just our Antibiotic for Cats - in liquid form!

COMPREHENSIVE VICTORY OVER THE PROBLEM AND GENTLE CARE: powerful composition helps pets with the most common problems: acute and chronic problems, dry cough, allergy support, uti and others*.

PREMIER SUPPLEMENTS FOR DOGS’ HEALTH: Our Origins 5-in-1 and Healthy Weight dog-food toppers stand above the rest when it comes to your pet’s digestive support. This bundle includes 1 package of Origins 5-in-1 and 1 package of Healthy Weight.

ULTIMATE CANINE SUPPORT: Origins 5-in-1 dog-food topper tastes great, is easy to use, and is packed full of natural vitamins and minerals to support your dog's health from the gut. Improved gut health can lead to increased immune support and more.

MUSCLE GAIN & PERFORMANCE: Healthy Weight dog weight gainer is for all breeds of dogs and wonderful for picky eaters! It works great for skinny or underweight hard gainers and high-performance dogs needing more calories or muscle mass.

Each Immune Support Kit for Cats & Dogs Contains one (1) of each: Immune Balance for Cats & Dogs (3.38 oz), Organic Mushroom Complex for Cats & Dogs (2.12 oz.), SpiruGreen for Cats & Dogs (180 Tablets per Bottle)

Following Dr. Mercola's belief in providing the best quality products, our Immune Support Kit for Cats & Dogs is non GMO, Gluten Free and Soy Free

Our Immune Support Kit for Cats & Dogs supports immune, liver, digestive, and overall health in cat and dogs. This Immune Support Kit also supports joint and muscle recovery.

GNC PETS ADVANCED DOG SKIN & COAT SUPPLEMENTS —Give your dog the glossiest coat around with GNC Pets Advanced Skin & Coat Soft Chews for All Dogs, complete with the necessary nutrients your dog needs for healthy skin and a beautiful, shiny coat

90 COUNT SOFT CHEWS —90 easy-to-swallow soft chews make it simpler than ever for your pet to get the nutrients required for optimal health. No more pill swallowing struggles for you and your pup

GNC PETS ADVANCED SEASONAL IMMUNE SUPPORT DOG SUPPLEMENTS —GNC Pets has just what you need to support seasonal immunity and boost overall immunity for your dogs

SUPPLEMENTS FOR DOGS & CATS: Give your pet the best day, every day with Huggibles Allergy + Immunity liquid supplements for allergy relief.

ALLERGY RELIEF: Each soft chew includes omega-3, turmeric, bromelain, grape seed extract, and more to support allergy relief and daily immunity.

SIMPLY ADD TO FOOD: Cats and dogs love the flavor! Easily add to your pet’s food or mouth to support allergy relief and immune support.

FULL OUT IMMUNE SUPPORT FOR ALL DOGS AND CATS: The key to a healthy pet is not to keep them at home and avoid these immune stresses – the best option is to keep there immune system in top working condition so he can quickly and effectively fight problems when they strike. The immune system is a pet’s “great protector” so keep it that way with our supplement.

PETS ENJOY L-LYSINE BENEFITS: Everyone knows that pets need plenty of protein. That, as well as calcium, is how pets thrive. What isn’t really talked about is how... Lysine actually enables the biosynthesis of protein and calcium absorption.The benefits of protein and calcium go hand-in-hand (or paw-to-paw) with Lysine! It’s that important to your pets health!

WHAT IS PET L-LYSINE? : L-Lysine is an essential amino acid for the well-being of your pet. The proteins that your pet’s body needs to run cannot be made if its body does not have the right amount of amino acids. Among the most important essential amino acids we find the lysine, a compound involved in many body processes and which is recommendable to be present in pet’s food for proper functioning of the body.

OPTIMAL SUPPORT – Cranberry Relief for dogs and cats provides urinary health support for dogs and cats over the age of 6 weeks.

INGREDIENTS THAT WORK – Specially formulated cranberry for dogs and cats with added Echinacea providing essential immune support to maintain overall health of your dog or cat.

EASY TO ADMINISTER - Tasty powder for dogs and cats. Give according to animals weight twice daily for 1-3 weeks. Then no more than twice weekly or per your veterinarian's recommendation.

Cordyceps Capsules for Your Pet’s Energy & Vitality: Extracted using hand-picked certified organic militaris mushrooms, our dog supplements & vitamins are the perfect sidekicks for providing your furry pal with energy, vitality, and fortified immune defense. Taking 1 capsule a day will give your pet a sufficient dose of beta-glucans, triterpenes, and other beneficial nutrients.

5 Mushroom Supplement Complex for Your Pet’s Overall Well-being: Made from 100% real Turkey Tail mushroom, Chaga, Maitake mushroom, Shiitake & Reishi mushroom powder, our 5 Defenders Cat & Dog Vitamins and Supplements is the perfect sidekick that can provide your furry pal with upgraded immune strength. Each serving of our mushroom powder capsules contains beneficial beta-glucans, triterpenes & nutrients to fortify your pet's immune system to the next level.

Turkey Tail Mushroom for Your Pet’s Immune System: Made from hand-picked turkey tail mushroom, this cat & dog multivitamin contains prebiotics, beneficial compounds, beta-glucans, Krestin (PSK) & Polysaccharide Peptide (PSP) for comprehensive immune & digestive support & overall wellness. Beta-glucans are the main compound in mushrooms that help to support our immune defenses so look no further for dog health supplies because these dog supplements & vitamins were made for you & your best bud.

FOOD TOPPER - Nutra Thrive is a bacon-flavored powder that can be added to any dog food. Each scoop of Nutra Thrive is packed with easily-absorbed vitamins, minerals, antioxidants, and digestive enzymes.

TOP INGREDIENTS - Nutra Thrive contains quality ingredients - and each one is hand-selected for maximum effectiveness and purity. However, we always recommend consulting with your veterinarian before beginning any new supplement.

QUALITY TESTED - Quality is our number one priority here at Ultimate Pet Nutrition, so all of our products go through rigorous testing for quality, purity and potency at an independent, 3rd-party facility.