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Calming treats for puppies: what's in them and how to use them

Big feelings are normal for a little dog in a big new world. Calming chews won't replace training, but many puppy parents use them around predictable stress: car rides, vet visits, thunderstorms, fireworks, or the first nights alone. Here's what's actually in the popular ones.

Always check the minimum age on the package. Many chews and supplements are labeled for puppies over a certain age or weight. If your puppy has a health condition or takes medication, ask your vet first.

Common calming ingredients

IngredientWhat it is
L-theanineAn amino acid originally found in green tea, widely used in pet calming supplements.
ChamomileA traditional calming herb.
MelatoninA hormone involved in sleep cycles. Ask your vet about dosing for a small puppy.
Colostrum / alpha-casozepineMilk-derived ingredients used in some veterinary calming products.
Probiotic strains (e.g. BL999)Used in some vet-brand calming products that focus on the gut-brain connection.

Popular options to look at

Zesty Paws Calming Bites

Soft chews from a popular supplement brand; the label lists ingredients such as chamomile and L-theanine.

Why people like it: Easy to give as a treat, and widely available at both Chewy and Amazon.

Good to know: Check the age guidance on the bag before giving it to a young puppy.

Find it on Chewy Find it on Amazon

VetriScience Composure

A long-running calming chew from a veterinary supplement company; formulas include colostrum calming complex, L-theanine and thiamine.

Why people like it: Popular with owners who prefer a vet-oriented brand. It comes in size-based versions.

Good to know: Choose the right size version for your puppy's weight.

Find it on Chewy Find it on Amazon

Purina Pro Plan Veterinary Supplements Calming Care

A powder probiotic you sprinkle on food, described by Purina as supporting calm behavior.

Why people like it: No chew needed, and it fits easily into a daily routine.

Good to know: It's a daily-use product, not a one-time 'before the fireworks' treat.

Find it on Chewy Find it on Amazon

NaturVet Quiet Moments

Soft chews whose label includes melatonin, L-theanine and chamomile.

Why people like it: A lot of owners use it around storms and travel.

Good to know: It contains melatonin, so ask your vet before using it with a young puppy.

Find it on Chewy Find it on Amazon

Making them work better

How we put this together: we read manufacturer product pages, ingredient labels and veterinary-organization guidance. We have not lab-tested these products and we don't give star ratings. Formulas change, so always read the current label. Last reviewed 2026-10-21.