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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.
Best hairball supplement for cats
- 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
Image sourced from Chewy. Copyright Tomlyn.
Best lysine multivitamin supplement for cats
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
Image sourced from Chewy. Copyright Pet Honesty.
Best joint supplement for cats
- 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
Image sourced from Chewy. Copyright Nutramax Laboratories Veterinary Sciences, Inc.
Best dental supplement for cats
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
Image sourced from Chewy. Copyright Swedencare.
Best calming supplement for cats
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
Image sourced from Chewy. Copyright Pet Honesty.