Quick answer
Our top pick is the AyurPet Calming Ashwagandha Yak Cheese Chew: up to 6 hours of settling chewing plus ashwagandha, Ayurveda's classic herb for stress. For daily background support, good alternatives use ingredients with dog research, such as BL999 (Purina Calming Care), alpha-casozepine (Zylkene) or L-theanine (Solliquin), given for weeks. Severe anxiety needs a vet.
Key takeaways
- Our top pick: the AyurPet Calming Ashwagandha Yak Cheese Chew, a long-lasting, 100% vegetarian, rawhide-free chew for fireworks, guests and time alone.
- Calming treats help mild, everyday stress best. The Merck Veterinary Manual lists L-theanine, alpha-casozepine and the probiotic Bifidobacterium longum BL999 among supplements with potential calming effects, used alongside behaviour work.
- Most work slowly. A veterinary evidence review found no evidence that alpha-casozepine works when given minutes to a few days before a stressor; Purina says its BL999 probiotic may take six weeks.
- Chewing itself is calming. The ASPCA notes that chewing can ease mild stress, which makes a long-lasting chew a useful tool during fireworks, guests or quiet time.
- For vet visits and travel, ask your vet about situational medication; some act within 1 to 2 hours.
Disclosure: AyurPet makes the Calming Ashwagandha Yak Cheese Chew and CoolCalm+ calming drops. We've included them and explained exactly why, and we've been fair to the alternatives. Every competitor ingredient below was checked on the brand's own website in October 2026.
What are the best calming treats for dogs?
The best calming treats for dogs either calm through chewing, which works within minutes, or carry ingredients with published dog research, used daily as part of a wider plan. That is why our top pick is a long-lasting ashwagandha chew, with L-theanine, alpha-casozepine (a milk protein fragment) and the probiotic strain BL999 as the strongest daily alternatives.
The Merck Veterinary Manual's chapter on treating behaviour problems, reviewed by a board-certified veterinary behaviourist in 2024, lists L-theanine, alpha-casozepine (alone or in a diet with L-tryptophan), Bifidobacterium longum BL999, melatonin, a magnolia and phellodendron product and several others as having "potential therapeutic effects" to reduce fear and anxiety. It is equally clear that these adjuncts may suit some pets and not others, and work alongside behaviour modification, not instead of it.
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Best calming treats for dogs
Which calming ingredients have dog evidence?
Popular calming treat ingredients, rated on published research in dogs. Even the best are modest helpers, not cures for anxiety.
BL999 probiotic
Bifidobacterium longum
Some evidence
Company crossover study in 24 anxious Labradors; slow onset
Alpha-casozepine
Milk protein fragment
Limited
38-dog trial versus selegiline; no evidence for same-day use
L-theanine
Green tea amino acid
Limited
Small, manufacturer-funded laboratory study
Ashwagandha
Withania somnifera
Early
Lowered cortisol in 20 senior dogs; behaviour not measured
Chamomile, valerian, passionflower
Common in herbal chews
Unstudied in dogs
No controlled calming trials in dogs that we found
Sources: Merck Veterinary Manual, 2025; Beata et al., 2007; Buckley, 2017; Araujo et al., 2010; Bharani et al., 2024. Not veterinary advice.
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How we chose the best calming treats
- Dog evidence for the key ingredient, and who funded it.
- Stated amounts per treat, so you know what your dog is getting.
- Realistic timing. Does the brand tell you it takes weeks, or promise instant calm?
- Non-sedating. A calm dog should still be alert and able to learn.
- Format and calories. Daily treats add up, especially for small dogs.
Best calming treats for dogs at a glance
| Product | Format | Key actives (per serving, as listed by the brand) | Best for |
|---|---|---|---|
|
AyurPet Calming Ashwagandha Yak Cheese Chew #1 OUR TOP PICK |
Long-lasting chew | Yak and cow milk, lime, salt, ashwagandha extract; up to 6 hours of chewing | Best overall: settling a dog through chewing during fireworks, guests or time alone |
| Purina Pro Plan Veterinary Supplements Calming Care | Powder sachet | Bifidobacterium longum BL999, 1 billion CFU per 1 g sachet | Long-term, everyday anxiety; easy to sprinkle on food |
| Zylkene (Vetoquinol) | Capsule | Alpha-casozepine (milk protein); 75, 225 or 450 mg capsules by weight | Daily use through a stressful period such as a move |
| Solliquin (Nutramax), dogs over 31 lb | Soft chew | Magnolia and phellodendron extracts 225 mg, L-theanine 102 mg, whey protein concentrate 50 mg | Dogs who need a treat format with a high L-theanine dose |
| VetriScience Calm & Confident (formerly Composure) | Chew | Thiamine 134 mg, Colostrum Calming Complex 22 mg, L-theanine 21 mg | Mild, situational stress |
| YuMOVE Calming Support (formerly Calming Care) | Tablet | L-tryptophan 200 mg, GABA fermentate 175 mg, L-arginine 150 mg, lemon balm 120 mg, B vitamins | Owners in the UK and Europe wanting a tablet |
| Zesty Paws Calming Bites | Soft chew | Chamomile, hemp seed, valerian root, passionflower, Suntheanine L-theanine, ginger, ashwagandha, L-tryptophan, magnesium (amounts not listed on brand page) | Dogs who need a tasty daily treat |
| AyurPet CoolCalm+ | Liquid drops | Ashwagandha, L-theanine, Brahmi, Jatamansi, Shankhpushpi, Tagar, Tulsi, Gotu Kola, L-tryptophan, magnesium glycinate, casein hydrolysate | Daily, non-sedative support with weight-based dosing |
The best calming treats for dogs, reviewed
#1 Our top pick · Best overall
AyurPet Calming Ashwagandha Yak Cheese Chew
Why it leads
- Calms within minutes: chewing is self-soothing, and a hard yak cheese chew gives up to 6 hours of focused, settling activity, exactly when fireworks or guests arrive.
- Ayurveda in every chew: ashwagandha extract, the classic Ayurvedic stress herb, with the cortisol-lowering result described below.
- Clean and simple: yak and cow milk, lime, salt and ashwagandha; 87% protein, 100% vegetarian and rawhide-free, with no added chemicals.
- Sized for your dog: Small up to 10 kg (22 lb), Medium 10 to 25 kg (22 to 55 lb), Large over 25 kg (55 lb).
In Ayurveda, ashwagandha (Withania somnifera) is a Rasayana, a rejuvenating herb used for over 3,000 years to help the body meet stress calmly and to settle Vata, the dosha linked with restlessness and fear. What science is finding: in a 2024 placebo-controlled trial in 20 healthy dogs aged 8 or older, 15 mg/kg of root extract daily for 60 days lowered serum cortisol, a stress hormone. A chew carries less ashwagandha than a dedicated supplement, so here the chewing does most of the work, and the herb adds gentle support.
Supervise chewing and take the last small piece away. Not for dogs with weak or broken teeth; check with your vet if your dog has a thyroid condition.
See the Ashwagandha chewSee the variety packPurina Pro Plan Veterinary Supplements Calming Care
This sachet contains one probiotic strain, BL999, at 1 billion CFU. Purina's own blinded crossover study in 24 anxious Labradors reported improvements in anxious behaviours and lower salivary cortisol and heart rate, and the brand says 90% of dogs showed an improvement. That research is company-run and was presented at a conference rather than independently replicated, and Purina states it may take six weeks to see results.
Pros: one clearly dosed active; simple to use; gut-brain approach. Cons: slow; not for same-day events; company-funded evidence.
Zylkene (alpha-casozepine)
Alpha-casozepine is a fragment of the milk protein casein. In a 56-day trial of 38 anxious dogs, it improved anxiety scores to a similar degree as the prescription drug selegiline, although there was no placebo group. A 2017 Veterinary Evidence review concluded that there is limited, weak evidence for a medium to longer-term effect, and no evidence that it works when given minutes to a few days before a stressful event.
Pros: long track record; lactose-free capsule that can be opened onto food. Cons: needs daily use ahead of a stressful period, not on the day.
Solliquin (Nutramax)
The medium-to-large dog chew lists 102 mg of L-theanine, an amino acid from green tea, alongside magnolia and phellodendron extracts and whey protein, which is one of the higher stated L-theanine amounts among chews we checked. The magnolia and phellodendron combination is one of the products the Merck chapter mentions. L-theanine's own dog evidence is thin: the best-known study was a small, manufacturer-funded laboratory trial in Beagles that were fearful of people.
Pros: transparent amounts; multiple actives with some research. Cons: separate small-dog chew; modest evidence.
VetriScience Calm & Confident
Formerly sold as Composure, this chew combines thiamine (vitamin B1), a colostrum-based calming complex and 21 mg of L-theanine. Dosing is simple: 1 chew for dogs up to 50 lb (23 kg), 2 for 51 to 100 lb (23 to 45 kg).
Pros: clear dosing; widely available. Cons: lower L-theanine than Solliquin; limited independent research on the finished product.
Zesty Paws Calming Bites
A popular chew combining chamomile, valerian root, passionflower, ginger and ashwagandha with Suntheanine (a branded L-theanine) and L-tryptophan. Dogs like them. The brand page does not list amounts per chew, and chamomile, valerian and passionflower have no controlled calming trials in dogs that we are aware of, so we see this as a pleasant routine treat rather than an evidence-led one.
Pros: palatable; easy to find. Cons: amounts not listed; most herbs unproven in dogs.
AyurPet CoolCalm+
Our non-sedative daily drops pair L-theanine, casein hydrolysate (a milk-protein ingredient), L-tryptophan and magnesium glycinate with classical Ayurvedic calming herbs: ashwagandha, Brahmi (Bacopa monnieri), Jatamansi, Shankhpushpi, Tagar (Indian valerian), Tulsi (holy basil) and Gotu Kola. In AyurPet's own 28-day study of 50+ dogs, 89% of owners reported calmer behaviour (internal, not peer-reviewed).
Pros: dose by weight; no calories; mixes into food. Cons: needs daily use for weeks; not a treatment for severe anxiety.
Do calming treats work?
Calming treats can help some dogs with mild stress, especially when used daily for several weeks alongside training and routine. They do not reliably work as a one-off before a scary event, and they are not a treatment for severe anxiety, phobias or aggression.
The research supports that cautious view. Most studies are small, short or industry-funded. A 2025 crossover study of 54 dogs by Mars Petcare researchers gave single-dose treats two hours before a 10-minute car journey. Only the treat combining CBD with L-tryptophan and alpha-casozepine made a measurable difference, a smaller rise in cortisol, and the authors described the effect as mild. CBD's legal status varies by country, so check local rules.
Expect a calmer baseline over weeks and faster recovery after a trigger. If you see nothing after 6 to 8 weeks, or your dog is getting worse, talk to your vet. Our week-by-week guide to how long it takes to calm an anxious dog sets realistic expectations.
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Best calming treats for dogs
How fast do calming options work?
Match the tool to the timing. Most calming supplements are slow; chewing is fast.
Minutes
Chewing and licking
A long-lasting chew in a safe spot, offered as the trigger starts.
About 1 to 2 hours
Vet-prescribed situational medication
For predictable events like vet visits, travel or fireworks. Prescription only.
2 hours, mild effect
Single-dose calming treats
In one study, only a CBD blend reduced the cortisol rise during a car trip.
Several weeks
Daily calming supplements
BL999 may take up to 6 weeks; alpha-casozepine works best with ongoing daily use.
Weeks to months
Training and routine
The foundation that every supplement supports.
Sources: VCA Animal Hospitals; Flint et al., 2025, Front Vet Sci; Purina; Buckley, 2017. Not veterinary advice.
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Calming chews for dogs: which ingredients to look for
Look for chews that name their active ingredients and amounts. Ingredients with at least some dog research:
- Alpha-casozepine (milk protein): limited evidence for medium-term use.
- L-theanine (green tea amino acid): small, early studies.
- Bifidobacterium longum BL999: company studies; slow onset.
- Magnolia and phellodendron: mentioned in the Merck chapter; limited data.
- Ashwagandha: early dog data on stress hormones, not yet on behaviour.
Popular but without controlled calming trials in dogs, as far as we can find: chamomile, valerian, passionflower and hemp seed (which is not CBD). For a full ingredient-by-ingredient comparison, see our guide to the best calming supplements for dogs.
Calming treats vs drops: which is better?
Neither is better in principle. Treats suit dogs who need motivation and owners who want simplicity; drops suit dogs of unusual sizes, picky eaters and dogs on weight-loss diets.
| Calming treats and chews | Calming drops | |
|---|---|---|
| Dosing | Fixed per chew; broad weight bands | Adjustable by weight |
| Calories | Add up with daily use | Usually negligible |
| Palatability | High; doubles as a reward | Mixed into food; some dogs notice |
| Best for | Training sessions, routine moments | Small or giant dogs, dieters, fussy eaters |
We make CoolCalm+ as drops because a liquid absorbs without needing to break down: "Liquid absorbs. Chews guess."
How much? Dosing by weight
Calming products are dosed by weight, so check the band for your dog. The table shows two brand labels and the ashwagandha dose used in the senior dog trial above. Start low, talk to your vet first, especially if your dog takes medication, is pregnant or has a condition. For AyurPet products, follow the dosage on the pack.
| Dog weight | Zylkene (brand label) | Calm & Confident (brand label) | Ashwagandha root extract (study dose, 15 mg/kg) |
|---|---|---|---|
| 4.5 kg (10 lb) | 1 x 75 mg | 1 chew | 68 mg |
| 10 kg (22 lb) | 2 x 75 mg | 1 chew | 150 mg |
| 20 kg (44 lb) | 1 x 450 mg or 2 x 225 mg | 1 chew | 300 mg |
| 30 kg (66 lb) | 2 x 450 mg | 2 chews | 450 mg |
Long-lasting chews as calming tools
A long-lasting chew is one of the simplest calming tools you have. Chewing and licking are self-soothing behaviours, and the ASPCA notes that chewing can relieve mild stress and boredom. Used well, a chew gives an anxious dog something to do with that energy.
- Introduce it on calm days first, so it becomes a positive, familiar ritual.
- Offer it before the trigger, for example 15 minutes before guests arrive or as fireworks start, in your dog's safe spot.
- Supervise, and take it away when it becomes small enough to swallow.
- Pick the right chew. Our guide to the best long lasting dog chews covers sizes and tooth safety.
For New Year's Eve and other fireworks nights, see our full plan for dog fireworks anxiety.
Calming treats for travel and vet visits
For one-off events like travel and vet visits, calming treats alone are usually not enough, because most need weeks to work. Plan ahead instead.
- Talk to your vet a week before. Vets can prescribe situational medication; VCA notes that trazodone, used for vet visits, travel and noise phobias, takes effect in about 1 to 2 hours for short-term stress, and the Merck chapter describes these drugs as working best for "acute, predictable" triggers.
- Rule out car sickness. Drooling, lip-licking and vomiting in the car can be nausea rather than fear; your vet can help with both.
- Practise. Short, happy car trips and "drop-in" visits to the clinic for treats build positive associations.
- Bring familiar comforts: the usual bed and a long-lasting chew, if your dog is not nauseous.
- Start daily support early if the trip is a planned relocation: products such as BL999 or alpha-casozepine need weeks, not hours.
AyurPet's take
The best calming "treat" is often a long chew at the right moment, while lasting change comes from daily support, routine and training over weeks.
That is how we use our own products. The Calming Ashwagandha Yak Chew is for the moment: fireworks, guests, a long evening alone. CoolCalm+ is for the baseline: given daily, non-sedative, alongside training. We would tell you not to rely on either for a dog with panic, self-injury, aggression or severe separation distress. That dog needs a vet, and possibly a veterinary behaviourist, first.
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Best calming treats for dogs
Your calming plan, by situation
Calming treats are one tool. Pick the right mix for the moment.
Fireworks, guests
In the moment
- Safe, quiet space
- Long-lasting chew as it starts
- Daily support begun weeks before
Vet visits, travel
Plan ahead
- Talk to your vet a week before
- Rule out car sickness
- Practise short, happy trips
Everyday stress
Build the baseline
- Daily calming supplement for weeks
- Routine, exercise, enrichment
- Reward calm behaviour
Panic, self-injury, aggression
See your vet first
- Treats are not enough
- Ask about a veterinary behaviourist
Based on the evidence summarised in this article. Not veterinary advice.
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Skip the treats and call your vet if your dog
- Injures itself trying to escape, or destroys doors and crates when alone
- Shows new aggression, or anxiety appeared suddenly in an older dog
- Pants, paces or trembles for hours, or stops eating
- Has a medical condition or takes medication, including thyroid medication
Frequently asked questions
How long do calming treats take to work?
Most calming treats need daily use for several weeks. Purina says its BL999 probiotic may take six weeks, and a veterinary evidence review found no evidence that alpha-casozepine works when given only minutes to a few days before a stressor.
Can I give my dog calming treats every day?
Most calming treats are designed for daily use. Count them in your dog's daily calories, follow the label's weight bands, and check with your vet if your dog takes any medication.
Do calming treats make dogs sleepy?
Most do not sedate dogs at label doses. They aim to take the edge off stress while your dog stays alert. If your dog seems drowsy or wobbly, stop and call your vet.
Are calming treats safe for puppies?
Some products have minimum ages, so check the label, and ask your vet before using any calming product in a puppy. For puppies, socialisation and training matter far more than supplements.
What is the best calming treat for fireworks?
A long-lasting chew in a quiet, safe space during the fireworks, plus daily calming support started weeks before. For dogs with true noise phobia, ask your vet about prescription medication well before the date.
Are calming treats or calming drops better?
Neither is proven better. Treats are convenient and rewarding; drops are easier to dose exactly by weight and add no calories. Choose the format your dog will take every day.
Can calming treats replace anxiety medication?
No. Calming treats support mild stress. Dogs with severe anxiety, phobias or aggression need a veterinary diagnosis and plan, which may include prescription medication and behaviour therapy.
If your dog's anxiety is new, severe or getting worse, see your vet before trying any calming treat. Our online vet consultation can help you build a plan.
How we researched this: Written by the AyurPet research team from 8 peer-reviewed and veterinary sources listed below, with competitor ingredients checked on each brand's own website (Purina Pro Plan Veterinary Supplements, Zylkene, Solliquin, VetriScience, YuMOVE, Zesty Paws). Last reviewed October 2026.
References
- Pankratz K. Treatment of Behavioral Problems. Merck Veterinary Manual, 2025. www.merckvetmanual.com/behavior/behavioral-medicine-introduction/treatment-of-behavioral-problems
- Buckley LA. Is Alpha-casozepine Efficacious at Reducing Anxiety in Dogs? Veterinary Evidence, 2017. veterinaryevidence.org/index.php/ve/article/view/67
- Beata C, Beaumont-Graff E, Diaz C, et al. Effects of alpha-casozepine (Zylkene) versus selegiline hydrochloride (Selgian, Anipryl) on anxiety disorders in dogs. Journal of Veterinary Behavior, 2007. doi.org/10.1016/j.jveb.2007.08.001
- Araujo JA, de Rivera C, Ethier JL, et al. ANXITANE tablets reduce fear of human beings in a laboratory model of anxiety-related behavior. Journal of Veterinary Behavior, 2010. doi.org/10.1016/j.jveb.2010.02.003
- Flint HE, Weller JE, Hunt ABG, King T. Treats containing cannabidiol, L-tryptophan and alpha-casozepine have a mild stress-reducing effect in dogs. Frontiers in Veterinary Science, 2025. doi.org/10.3389/fvets.2025.1632868
- Bharani KK, Devarasetti AK, Carey L, et al. Effects of ashwagandha (Withania somnifera) root extract on aging-related changes in healthy geriatric dogs: a randomized, double-blinded placebo-controlled study. Veterinary Medicine and Science, 2024. doi.org/10.1002/vms3.1556
- Destructive Chewing. ASPCA, n.d.. www.aspca.org/pet-care/dog-care/common-dog-behavior-issues/destructive-chewing
- Forsythe LR, Gollakner R. Trazodone. VCA Animal Hospitals, n.d.. vcahospitals.com/know-your-pet/trazodone