5 Best Relaxants for Cats - May 2026

BEST OF THE BEST

Nutramax Laboratories

Solliquin Behavioral Health Supplement

Easiest to Use

Calm that comes in a treat.

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PROS

Specially formulated to help pets relax during stressful moments like car trips, vet visits, or bath time.
Comes in tasty chews that pets love.
Recommended that your pet take 1 treat a day for 30 to 45 days in conjunction with behavioral modification therapy as guided by your vet for serious anxiety issues.

CONS

Pricey when compared to similar options.

BEST BANG FOR THE BUCK

holistapet

CBD Cat Treats

Best CBD Treats

The calming effects of CBD at a great price.

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PROS

These crunchy treats are flavored with salmon and are made with grain-free, natural ingredients.
Each treat has 2 mg of broad-spectrum CBD.
CBD is not psychoactive but is effective at relieving anxiety and stress.
Great for reducing aggressive behavior, stressful situations, and chronic pain.

CONS

The texture of these treats may be too crunchy for some cats.

PetHonesty

Calming Chews

Excellent Value

These delicious chews pull double-duty as a treat and a method of calming your cats.

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PROS

This 3.7-ounce bag of treats by PetHonesty contains enough chews for a roughly 30-day period.
Some of the active ingredients include thiamine, L-theanine, and chamomile.
Some chicken ingredients are included for flavor.

CONS

Some cats don’t like them.
Others were overly affected, putting them to sleep.

Purina Pro Plan Veterinary Diets

Calming Care Cat Supplement

Best for Everyday Use

This dietary supplement just needs to be sprinkled on your cat’s food.

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PROS

A dietary supplement from Purina Pro Plan that uses probiotic strain BL999 to promote calm behavior.
One box contains 30 packets with 1 packet recommended per day.
It has liver flavoring added.
It doesn’t add many calories so shouldn't affect your cat’s weight.

CONS

It can take up to 6 weeks of administration to see an effect.

Comfort Zone

Multi-Cat Diffuser Kit

Most Comprehensive

A trusted and easy-to-use diffuser option.

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PROS

A veterinarian-recommended solution to keep cats happy and calm.
Certified to UL safety standards and includes an automatic shut-off system.
The rotatable plug makes it easy to place in any wall outlet.
Comes with 2 refills that are enough for 1 room for up to 2 months.
An all-natural solution that’s safe for your cat.

CONS

Some users worry about the safety of the heating element.

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BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We buy all products with our own funds, and we never accept free products from manufacturers.About BestReviews

How We Tested

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

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First Reviewed

July 17, 2021

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