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Best Supplements for Cats 2025
Written by Emily Bayne
Veterinary reviewed by:
Published: 01/06/2025, edited: 01/13/2025
The Wag! team conducts independent research and consults pet experts to curate our recommendations. This content is supported by our affiliate pet partners and we may receive a commission on the links provided.
From combatting hairballs to improving mobility to managing anxiety, there are hundreds of supplements available that can improve your cat's quality of life. Unfortunately, separating the supplements with little to no scientific basis from those with proven results is tough! We've done the digging for you to find the top-rated supplements on the market so you don't waste your money or time on supplements that don't work.
Read on as we walk you through some of the best supplements for cats on the market. Learn about their benefits, read reviews from pet parents, and discover the best supplements for your feline friend.
Overview
Tomlyn Laxatone Flavored Gel Hairball Control Supplement for Cats
Best hairball supplement for cats
If your kitty frequently coughs up clumps of fur, a hairball gel might be in order. Hairball gels are one of the most effective types of supplements for this problem and Tomlyn Laxatone Flavored Hairball Gel is among the highest-rated. The gel coats any swallowed hair, helping it pass more easily through the digestive tract.
Tomlyn Laxatone Supplements come in three kitty-approved flavors and features lubricants like petroleum and mineral oil to ensure those pesty hairballs wind up in the litter box and not on your bed.
Available flavors:
Available sizes:
- 2.5 oz
- 4.25 oz
Tomlyn Hairball Gel
Why Wag! loves Tomlyn Hairball Gel
- Easy to administer—let your cat lick it off your hand or squeeze a dab on the top of their paw to encourage them to lick it off
- Can be given up to three times a week as needed
- Only requires a small amount to be effective
- Safe for all ages
Considerations & concerns
- Don't use this product around meal or treat times as food can interfere with its effectiveness
- Several reviewers claim the gel is too thin and messy
What pet parents say about Tomlyn Hairball Gel
"My Chloe was having a really hard time with those pesky hairballs. She just couldn't pass them like she should, and I'm not gonna get into what she was going through. IYKYK. Anyway, I started her on hairball food and this Laxatone, and it's made a huge difference! She's back to her old self again! No, she doesn't like it, and I have to scruff her to administer it, but she opens her mouth and licks it off my hand. The alternative isn't acceptable to either of us. Now, I just give it to her every couple weeks to make sure things are moving along. Great stuff."
Read more reviews on Chewy.
Image sourced from Chewy. Copyright Tomlyn.
Pet Honesty Dual Texture Multivitamin Chews
Best lysine multivitamin supplement for cats
Multivitamins are a great way to add shine to your kitty's coat and ensure they get all the nutrients they need (especially if your feline isn't a good eater).
Pet Honesty Dual Texture Multivitamins are a yummy way to add vitamins, antioxidants, lysine, and omega fatty acids to your kitty's diet. Plus, with over 33% protein (as dry matter) and just 1.2 calories per chew, these make great guilt-free "treats" for health-conscious kitties.
Pet Honesty Multivitamin Chews
Why Wag! loves Pet Honesty Multivitamin Chews
- Loaded with lysine, vitamins, antioxidants, and omega fatty acids
- Irresistible pork and chicken flavor makes giving your cat a supplement easy
- PetHonestly uses recycled plastics for their packages (we love a focus on sustainability!)
- Three different vet consultants oversee the development of this product to ensure its nutritionally balanced
Considerations & concerns
- You'll need to consult your vet before giving these to kittens under 4 months old
- You can feed your cat up to 10 chews daily per 10 lbs of body weight
What pet parents say about Pet Honesty Multivitamin Chews
"I purchased this product because my cat had fleas, and after bathing him three times over 1.5 months, he developed dandruff. I researched solutions and found that omega-3 fatty acids or fish oil could help. My cat weighs about 8-10 lbs, so on the first day, I gave him 8 chews, then reduced it to 4-5 chews on the second and third days. In just a few days, my partner and I noticed an incredible difference in his coat; it became silky and soft. My partner even thought I had given him another bath (with the oatmeal conditioner I bought but haven't used yet). This product works wonders!"
Read more reviews on Chewy.
Image sourced from Chewy. Copyright Pet Honesty.
Nutramax Cosequin Hip & Joint Capsules
Best joint supplement for cats
Joint problems are common as among kitties, especially overweight cats. Cats are experts at hiding pain, but you may notice your feline is sleeping more, playing less, and grooming less if they're having joint issues.
Glucosamine and chondroitin supplements, like those from Nutramax, are a natural way to address joint problems. Glucosamine and chondroitin occur naturally in your kitty's joints and help to strengthen the cartilage and reduce inflammation and pain.
Available sizes:
- 55-count
- 80-count
- 160-count
Nutramax Cosequin Hip & Joint Capsules
Why Wag! loves Nutramax Cosequin Capsules
- Simple, limited-ingredient formula that consists of glucosamine, chondroitin, and manganese
- Nutramax is a trusted brand with a focus on quality
- Also comes in a soft chew formulation
- Affordably priced
Considerations & concerns
- If you have a particularly difficult cat, you might want to look into their chewable formula
What pet parents say about Nutramax Cosequin Capsules
"I was searching high and low for a joint supplement that was: 1. effective 2. easy to administer 3. tolerated by cats And my search has ended at Cosequin by Nutramax! As a registered veterinary technician, I trust Nutramax to provide high quality and effective products. This supplement is easy to use. [The directions say to] administer once daily over food or in the capsule. I like to break open that capsule and sprinkle it over a portion of wet food. I usually add water or Churu over it and mix thoroughly."
Read more reviews on Chewy.
Image sourced from Chewy. Copyright Nutramax Laboratories Veterinary Sciences, Inc.
ProDen PlaqueOff Powder Cat Supplement
Best dental supplement for cats
Adding ProDen PlaqueOff to your purring pal's food is a proactive way to eliminate plaque and bad breath. Cats are prone to dental disease, so addressing plaque before it becomes a problem is crucial.
Studies have shown that dental disease affects between 50% and 90% of cats over 4 years old. PlaqueOff is a meal topper that contains just two ingredients, seaweed and brewer's yeast, which help prevent plaque sticking to your cat's teeth.
Keep in mind PlaqueOff is a supplement to your kitty's dental hygiene routine, not a substitute.
ProDen PlaqueOff Powder
Why Wag! loves ProDen PlaqueOff
- A single bottle will last between 6 months and a year,
- PlaqueOff is certified by the Veterinary Oral Health Council
- Easy to administer, just sprinkle over your kitty's food
- Limited-ingredient formula
Considerations & concerns
- Not a substitute for regular brushing and professional dental cleanings
- PlaqueOff is a proactive supplement and will not reverse pre-existing gingivitis
- This product is not recommended for cats with thyroid problems since it is high in iodine
What pet parents say about ProDen PlaqueOff
"My cat has such bad oral health. He's got inflamed gums and massive plaque and tartar build-up. A couple years ago, he had to undergo major dental surgery to clean his teeth and extract some rotten teeth. I'm so glad I found PlaqueOff here at Chewy! His gums look practically normal now, just a tiny bit of redness. He won't eat the treats, but he'll consume the powder mixed with canned food. Even if this wasn't more cost efficient than routine vet visits for cleanings, which it is, I love it because he's got to be in significantly less pain and discomfort now that his gums aren't so irritated."
Read more reviews on Chewy.
Image sourced from Chewy. Copyright Swedencare.
Pet Honesty Dual Texture Calming Chews
Best calming supplement for cats
If your kitty is prone to anxiety, overstimulation, or hiding, a calming chew like these from Pet Honesty are a great option.
These treats are flavored with chicken fat and chicken meal and contain calming ingredients like vitamin B1, L-theanine, and chamomile. L-theanine, in particular, is great for anxiety since it increases levels of dopamine and GABA, which promote happiness and relaxation.
Pet Honesty Calming Chews
Why Wag! loves Pet Honesty Calming Chews
- Similar to traditional treats in texture to encourage fussy felines to chow down
- Doesn't contain common allergens like corn, wheat, and soy
- Manufactured in the US
- No artificial preservatives
Considerations & concerns
- It is unlikely to help severe anxiety or behavioral concerns
What pet parents say about Pet Honesty Calming Chews
"It actually works, which is rare these days. I have 2 very nervous shelter kitties that had a rough start in life. With these chews, they are much calmer, plus they like getting to chase and hunt down the treats before eating them. I am happy to provide all the peace I can for them. They do have a laxative effect if they eat even one past the directed dosage. They are both small girls though, so that may be part of it."
Read more reviews on Chewy.
Image sourced from Chewy. Copyright Pet Honesty.
FAQ
What other types of supplements are good for older cats?
Are cat supplements necessary?
Are cat supplements worth the money?
