The Best Cat Antioxidant Supplements

Looking for the best Cat Antioxidant Supplements?

Discover now our comparison of the best Cat Antioxidant Supplements. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Cat Antioxidant Supplements are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Cat Antioxidant Supplements in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1

Pet Wellbeing Life Gold for Cats - Immune Support, Antioxidants, Normal Detoxification, Cellular Health, Astragalus, Blessed Thistle - Veterinarian-Formulated Herbal Supplement 2 fl oz (59 ml)

BETTER QUALITY OF LIFE. Is your feline friend thriving? We’d be honored to help your cat live their happiest and healthiest life possible.
IMMUNE SYSTEM CARE. A veterinarian-formulated holistic supplement featuring herbs renowned for their ability to support the immune system and help maintain your cat’s vibrant vitality.
ANTIOXIDANT SUPPORT. Life Gold herbal ingredients provide antioxidant support that helps maintain antioxidant and free-radical balance which is essential for immune resilience.
HEALTHY DETOXIFICATION. Gentle support for your cat’s elimination channels, including bowel, lymphatics, and lungs to help maintain healthy removal of waste byproducts.
VETERINARIAN-FORMULATED. MADE IN USA. MONEY-BACK GUARANTEE. TRUSTED CARE SINCE 2001. Expertly developed by our compassionate team of in-house holistic veterinarians to offer your pet essential health support. All our vet-formulated supplements are proudly produced in FDA-registered, GMP-certified facilities in the USA. Each product is made with the highest-quality ingredients and undergoes rigorous testing for purity.

No. 2

VetriScience DMG Immunity Health Easy-Dose Liquid, Vetri DMG Immune Support Supplement for Cats and Dogs, Hypoallergenic, Support Performance, Stamina, Immune Response, 30 ml

Immune Support Supplement for Cats & Dogs: DMG amino acids help support healthy immunity and the production of antibodies to promote a stronger, more responsive, and more resilient immune system
Backed by 30+ Years of Research: DMG has been used in both human & animal care and wellness support for over three decades, and is a well-documented, heavily researched immune support supplement for cats and dogs
DMG for Behavioral Balance: DMG Immunity Health offers both antioxidant and adaptogenic properties to help the body remove toxins and cope with both physical and emotional stress
Physical Stamina & Energy: By supporting healthy circulation and oxygen utilization and helping to lower lactic acid buildup, DMG helps to support physical performance, stamina, healthy energy, and muscle recovery after exercise, making it a great liquid supplement for both active and senior pets
Unflavored, Easy-Dose DMG Liquid: DMG Immunity Health comes in an unflavored, unscented liquid with an easy-dose dropper to make administration simple. Give by mouth, mix into food, or hide in a treat

No. 3

Pet Honesty Cat Multivitamin Crunchy & Creamy Chews - Cat Treats for Health + Immune, Joint Support, Skin & Coat, & Digestion - Vitamins with Omega 3s, Lysine & Probiotics (30 Day Supply)

A Texture and Taste Cats Love: Pet Honesty’s Multivitamin for cats is a delicious supplement that contains essential vitamins, minerals, and nutrients to support your cat’s overall health. Powerful, wholesome ingredients are packed inside a unique texture format: crunchy on the outside and creamy on the inside, offering a taste and texture combination that cats love.
Help Support Overall Health & Immune Function: These easy-to-give chews contain key functional ingredients to support overall immune, heart, joint, skin, and gut health. Plus, with a taste and texture 4/5 cats love*, giving them a chew is a simple way to ensure your cat is getting a well-rounded variety of important nutrients added to their diet. *Based on a 2022 feeding study
Made with Natural & Other Premium Ingredients Like Lysine, Beta Glucan, and Omega-3s: Multivitamin chews are filled with health-supporting ingredients you can trust. Lysine, an essential amino acid, supports immune and respiratory health. Beta Glucan, a premium prebiotic, supports gut and digestive health. Omega-3s, fatty acids from fish oil, flaxseed, and green-lipped mussels, promote skin, coat, and joint health. All in a delicious chicken-flavored chew your cat will love!
Pet Honesty Pledge: A taste your pet will love and results you can trust. Made with the most effective natural and premium ingredients. Formulated without corn, wheat, or soy. No artificial preservatives, colors, or flavors.
Manufactured in the U.S.A. | NASC Member Company: All Pet Honesty products are made in the US with US and globally sourced ingredients and are produced in a GMP-compliant facility that meets the highest safety standards, so you can rest assured you're giving your pet the best quality product possible! Pet Honesty is also a NASC member company, meaning it has met the highest quality and compliance standards for pet supplements.

No. 4

Cat Vitamins - Spectrin 16 OZ - Liquid Vitamin & Antioxidant Supplement for Cats - 96 doses

Nusentia's full spectrum liquid feline multivitamin: Spectrin for Cats : Best Value per Ounce! Includes antioxidants, vitamins, minerals, and key nutrients for vibrant skin, coat, and allergy support. Great for excessive shedding and allergies in cats.
Easy dosing: Liquid cat vitamins absorb faster and cats love it!
Up to 96 doses per container
Made in the USA : Certified GMP : All Natural : Effective : Quality Tested
Ideal for cats and kittens of all ages and stages.

No. 5

Dr. Bill’s Feline Immune Support | Boosts Cat Immunity and Health with Colostrum, Beta Glucan, Turkey Tail Mushroom, Zinc & Vitamin C | Powder Supplement for Cats of All Ages

Immune Boost to Fight Diseases for Cats: Recommended cat supplements & vitamins for growing, adult, and senior cats Immune Support aids in supporting your cat’s innate immune system in its daily fight against diseases
Biologically Appropriate, Natural Ingredients: Made with biologically appropriate, high quality, natural ingredients such as Beta Glucan, Colostrum, Zinc and Bifidobacterium
Proactive Nutritional Support: This unique formula provides support for optimum immune health, cellular protection, and rapid immune response
Veterinarian Developed and Recommended: Developed by Dr. Bill Barnett and reflecting his proactive approach towards keeping animals healthy and extending their lives, these supplements have been used and recommended by veterinarians, breeders, and trainers for over 30 years
Made in the USA: All Dr. Bill’s supplements are made in the United States under strict quality standards, using veterinarian-selected ingredients for purity, safety, and effectiveness you can trust

No. 6

NaturVet L-Lysine Immune Support Plus Antioxidants Cat Supplement – Helps Support Eye Health, Immune System for Cats – Includes Amino Acids – 60 Ct. Soft Chews, 30-Day Supply

ADVANCED IMMUNE SUPPORT FOR CATS: Fuel your pet with the nutrients she needs to stay healthy and boost her immune system with cat health supplements that feature antioxidants and much-needed nutrients and amino acids to stay active.
HELP STRENGTHEN CAT IMMUNITY: Give your furry friend the immune boost she needs with these health supplements for cats that are infused with veterinarian-approved ingredients such as amino acids and L-Lysine.
PET EYE HEALTH SUPPLEMENT: A healthy immune system and eye health is essential for cats of any age. Ensure your furry friend remains active with healthy vision with these pet health supplements that help support normal inflammatory response and cat eye health.
VETERINARIAN-FORMULATED CAT SUPPLEMENTS: Rich in antioxidants and amino acids, these immune support cat supplements feature a veterinarian formula that is formulated with vitamins and nutrients to help give your kitten or senior cat an immune boost.
PET PRODUCTS YOU CAN TRUST: Since 1994, NaturVet has been serving the four-legged community with wholesome, vitamin-infused dog and cat supplements so that your pup or kitten maintains a healthy lifestyle. Made in the USA, each pet product from NaturVet is cGMP compliant and wheat-free.

No. 7

Feline Essential Catalyst Antioxidant Enzyme Formula for Cats - Cat Digestive Enzyme - Digestive Enzymes for Cats - Cat Digestive Support - Feline Catalyst Liquid Pancreatic Enzyme Supplements Cats

Naturally Support Your Cat’s Health — CATalyst is a cat antioxidant supplement that provides health benefits derived from natural enzymes. CATalyst antioxidant enzyme formula for cats helps support immune, joint, and digestive health while caring for their skin and fur in a simple liquid supplement that can be added to their daily food
Enzymes Are the Cat-alysts of Digestion — CATalyst is made with the cat digestive enzyme needed to break down food and support digestive health. Unlike CATalyst, few other digestive enzymes for cats feature the absorbent form of Superoxide Dismutase (SOD), made from natural plant extracts. SOD is the body's powerful defense against free radicals and the inflammatory reactions they cause, making CATalyst the choice enzymes for cats
Help Your Cat Stay Agile — CATalyst is the joint supplement for cats that can help get the most out of their nine lives. Help provide cat arthritis and joint support pain relief and help improve hip and joint health for cats. Whether you have a young kitten or a cat in their senior years, their mobility is key to a healthy and happy life
Fortify Your Feline — Optimize your furry friend’s health and wellness with this cat immune support and cat digestive support supplement. Give them a boost with an enzyme and antioxidant rich formula that provides the live nutrition they need. Feline CATalyst liquid digestive enzymes help by strengthening their immune response for a longer, happier life
An Easy Addition to Their Diet — We all know that trying to feed a cat joint supplement treats or cat vitamins and supplements can be a difficult (and even dangerous) task. Worry no more! CATalyst comes in an easy-to-use liquid form. Just add the recommended dose of pancreatic enzyme supplements cats love to their daily meals and help them reach their full potential

No. 8

Life Extension Cat Mix, cat Food Supplements, Heart Health, probiotics, L-arginine, Taurine, B12, folic Acid, Vitamin C, Vitamin E, Rosemary, Nutrient Absorption, Gluten-Free, Non-GMO, 85 Servings

Cat multivitamin for overall health – Your cat has unique nutritional needs. Our formula complements your kitty’s balanced meals to help maintain overall health and well-being.
10+ essential vitamins – Our formula supports cardiovascular and overall health with vitamin A, B vitamins, and vitamins C and E for antioxidant support, so your cat can live their best life (all nine of them!).
Probiotics and other nutrients – Cat Mix supports digestive health with cat-friendly probiotic strains. It also promotes eye, kidney and pancreatic health with amino acids arginine and taurine.
Ingredients matter – We use the finest raw ingredients with the quality and purity you deserve. The majority of our products are non-GMO, gluten-free and manufactured in the USA—and a Certificate of Analysis is available for every one.      
Live your healthiest life – We believe the answers to a healthier life are in reach, and that scientific research is the key to getting there. That’s why so many of our formulas feature specific ingredients and amounts based on scientific studies.

No. 9

Cat Urinary Tract Health Crunchy & Creamy Chews - Promotes Healthy Digestion & Normal Bladder Function with Cranberry, Antioxidants, & Probiotics - Kidney + Bladder Support Supplement (30 Day Supply)

A TEXTURE AND TASTE CATS LOVE: With Pet Honesty’s Urinary Tract Health for cats your little one will be good to go. Powerful wholesome ingredients including antioxidants, probiotics, and fiber, are packed inside a unique and award-winning texture format: it’s crunchy on the outside and creamy on the inside, offering a taste and texture combination that cats love.
PROMOTES URINARY TRACT HEALTH: These easy-to-give chews contain key antioxidants, probiotics, and fiber designed to support your cat’s urinary tract system while maintaining your cat’s normal urine pH and supporting your cat’s immune system and gut health. Plus, with a taste and texture 9/10 cats love*, it’s a simple way to promote your cat’s urinary tract health and help them feel their best. *Based on a 2024 feeding study
MADE WITH CLEAN & SCIENCE-BACKED INGREDIENTS LIKE CRANBERRY EXTRACT, GLUCOSAMINE, AND PROBOTICS: Urinary Tract Health chews are filled with health-supporting ingredients you can trust. Cranberry extract acts as a natural antioxidant that helps counter bad bacteria in the urinary tract. Glucosamine maintains your cat’s urinary tract health & function. Added prebiotics, probiotics, and fiber support your cat’s gut health. All in a delicious chicken flavor your cat will love!
BACKED BY THE PET HONESTY PLEDGE: PhD crafted, Vet approved. Delivering real results. Made with clean + research-backed ingredients. Formulated without fillers like corn, wheat, soy, cellulose or palm oil. No artificial preservatives, colors or flavors. Drool-worthy taste. Gentler on the planet - Packaged with minimum 30% recycled plastic.
MANUFACTURED IN THE U.S.A. | NASC MEMBER COMPANY: All Pet Honesty products are made in the US with US and globally sourced ingredients and are produced in a GMP compliant facility that meets the highest safety standards. Pet Honesty is also a NASC member company meaning it’s met the highest quality and compliance standards for pet supplements.

No. 10

Pet Honesty Cat Immune Support Lysine - Cat Allergy Relief - Sneezing, Runny Nose, Watery Eyes - Cat Supplements & Vitamins with Omega 3s, L-Lysine, Antioxidants, Colostrum - Chicken (30 Day Supply)

Made with Natural & Other Premium Ingredients Like Lysine, Colostrum, and Quercetin: Immune Health Lysine chews are filled with health-supporting ingredients you can trust. Lysine, an essential amino acid, supports immune and respiratory health. Colostrum is rich in antibodies that help support the immune system and gut health. Quercetin has antioxidant properties that promote a normal inflammatory response. All in a delicious chicken-flavored chew your cat will love!

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Last update on 2025-05-22 / Affiliate links / Images from Amazon Product Advertising API

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