Last updated October 2026 · Written and fact-checked by the Pure Majesty Pets editorial team
Short answer: which calming supplement for dogs should you buy in Australia?
Choose a calming supplement for dogs by job, not by brand. For situational calm and sleep that you can dose to the drop, such as storms, fireworks, travel and restless senior nights, melatonin for dogs in liquid form is the tighter fit: it pairs melatonin (3 mg per mL) with L-theanine, alpha-casozepine, chamomile, magnesium and vitamin B6, all disclosed by amount, for A$47 a bottle with free shipping and duties and GST prepaid. For a palatable everyday routine, Zesty Paws Calming Chews, sold in Australia in a lamb and sweet potato soft chew, are a solid option.
Read this before you buy anything. Canine anxiety is a veterinary and behavioural condition. Separation anxiety, true noise phobia and panic states are managed with a behaviour modification plan, sometimes alongside prescription medication, under a veterinarian or a veterinary behaviourist. No supplement on this page is a substitute for that. We describe what ingredients support; we do not claim to diagnose, treat or cure any condition.
What does the evidence actually say about calming ingredients?
Here is the part most comparison articles skip: the clinical evidence behind canine calming ingredients is thin. Most published trials enrol 10 to 40 dogs, many are open-label (owners know what they gave), and outcomes are usually owner-scored questionnaires rather than blinded, objective measures. That does not make these ingredients useless. It means honest expectations beat bold claims.
| Ingredient | What research exists | Strength of evidence |
|---|---|---|
| L-theanine | Small open-label and preliminary trials in storm-sensitive and noise-phobic dogs reported reduced owner-rated anxiety and less panting and pacing; a small laboratory study in Beagles reported more human approach behaviour versus placebo. | Weak to moderate. Studies are small, mostly unblinded, and several combined the supplement with behaviour therapy, so the supplement's independent effect is unclear. |
| Alpha-casozepine (milk-protein peptide) | Béata et al. (2007), Journal of Veterinary Behavior 2(5):175–183, DOI 10.1016/j.jveb.2007.08.001: 38 dogs, 56 days, alpha-casozepine 15 mg/kg/day vs selegiline 0.5 mg/kg/day; both groups improved with no statistical difference between them. | Moderate but confounded. A non-inferiority design with a behaviour modification programme in both arms, which a later Veterinary Evidence appraisal flagged as a limitation. |
| Melatonin | Widely used off-label by veterinarians for sleep-wake disruption and noise events; typical published practice ranges sit around 1.5–6 mg per dose depending on body weight, given roughly 30 minutes to 2 hours before a predictable stressor. | Limited controlled data. Clinical use is common and long-standing, but published controlled trials in dogs are scarce; reviews describe the therapeutic data as sparse and varied. |
| Magnolia officinalis + Phellodendron amurense (in neither product compared here) | DePorter's case-report series of a magnolia/phellodendron + L-theanine + whey protein nutraceutical: 16 dogs and cats completed 60 days, 87.5% of owners rated it equal or better than a prior theanine product. | Weak. Case series, no control group, owner-reported. |
| Chamomile | Traditional use; canine-specific controlled trials are essentially absent. | Anecdotal / traditional. "Herbal" is not a synonym for "risk-free" in concentrated extracts. |
Help your dog settle into calmer moments.
Explore our liquid melatonin formula for bedtime, travel, thunderstorms and other stressful situations. A$47 a bottle, free shipping, duties and GST prepaid.
For supportive care; not a substitute for veterinary diagnosis or prescribed treatment.
Bottom line an honest label-reader should hold onto: current research does not strongly prove that any over-the-counter calming ingredient resolves clinical canine anxiety. These are support tools for mild, situational stress.
How do Pure Majesty and Zesty Paws compare, criterion by criterion?
Both are reputable brands. The table below reports only what each brand's own Australian product page states, so there are no claims about which one "calms better".
| Criterion | Pure Majesty Pets Melatonin Drops | Zesty Paws Calming Chews (Australia) |
|---|---|---|
| Format | Liquid drops, measured with a dropper | Heart-shaped soft chew, lamb and sweet potato flavour base |
| Named actives | Melatonin, L-theanine, alpha-casozepine, water-soluble chamomile extract, elemental magnesium, vitamin B6 (as P5P) | L-theanine, tryptophan, chamomile, valerian root, passionflower, ginger root, magnesium |
| Amounts disclosed | Yes, per 1 mL: melatonin 3 mg, L-theanine 50 mg, alpha-casozepine 25 mg, chamomile 25 mg, magnesium 5 mg, P5P 0.5 mg | The page names the actives but gives no amounts per chew |
| Contains melatonin? | Yes, 3 mg per mL | Not among the named actives |
| Dose granularity | Adjustable by volume to body weight (about 0.33 mL to 2 mL steps on the page's guide) | Fixed chews: 1 a day under 10 kg, 2 a day for 10 to 35 kg, 3 a day over 35 kg |
| Intended use pattern | Situational and bedtime: give about 30 minutes ahead of the stressor | Daily routine, split across meals |
| Picky eaters / dogs that refuse chews | Goes straight in the mouth or into food | Depends on the dog accepting the chew; lamb-based, so check for sensitivities |
| Price in Australia | A$47 a bottle; A$94 for three (buy 2, get 1 free); A$141 for five (buy 3, get 2 free) | A$49.99 for 50 chews; A$69.99 for 90 chews |
| Shipping | Free to Australia, duties and GST prepaid | Free shipping on orders over a set spend, per its page header |
Zesty Paws details are from its Australian Calming Chews product page, opened on 8 October 2026. Zesty Paws sells different calming products in other countries, so do not assume a US label applies to the chew you can buy here.
What does each cost per day?
On the Zesty Paws Australian page, a 50-chew pack at A$49.99 works out at about A$1.00 a chew and a 90-chew pack at A$69.99 at about A$0.78 a chew. At the page's serving guide, that is roughly A$1.00 to A$3.00 a day (50-chew pack) or A$0.78 to A$2.33 a day (90-chew pack), depending on whether your dog is under 10 kg, 10 to 35 kg or over 35 kg.
The Pure Majesty bottle volume is not stated in the product details we reviewed, so we do not put a per-day figure on it. What we can say is the bundle price per bottle: A$47 for one, A$31.33 each on the three-bottle offer and A$28.20 each on the five-bottle offer.
Where does Zesty Paws genuinely win?
Credit where it is due. If your dog will eat it, a chew is the easiest habit in the world to keep, and daily consistency is exactly how an L-theanine product is meant to be used. The Australian chews are also made in Australia with Australian lamb according to the product page, which some owners value. If you want one of the best calming treats for dogs as a baseline everyday routine, that is a defensible pick.
Where does Pure Majesty stand apart, factually?
Not "more ingredients" for the sake of it. A different instrument for a different problem. Three concrete, checkable differences:
- Melatonin plus supporting calmers, every amount disclosed. Each 1 mL carries melatonin (3 mg), L-theanine (50 mg), alpha-casozepine (25 mg), chamomile extract (25 mg), magnesium (5 mg) and vitamin B6 as P5P (0.5 mg). That covers three of the ingredients with published canine research discussed above, in amounts you can read before you buy.
- Dose granularity. A liquid can be measured out for a 4 kg Chihuahua or a 40 kg Labrador. A fixed-dose chew cannot be split below one chew without guesswork, a real limitation at the small-breed end.
- Timing control. Melatonin is used ahead of a known event; a liquid you can give about 30 minutes before the storm front arrives fits that pattern better than a chew designed for daily use.
We do not publish an onset guarantee, and we will not invent one. Individual response varies, and some dogs show no visible change at all. For the dose chart in more detail, see our guide to melatonin dosage for dogs.
The starting guide on the product page
The Pure Majesty page gives a commonly used starting guide for melatonin, up to three times a day. The page lists weights in pounds; the kilogram figures below are our approximate conversions. Always confirm the amount with your veterinarian and follow the dropper markings on the bottle.
| Dog weight | Typical melatonin amount | Approx. volume |
|---|---|---|
| Under 10 lb (under about 4.5 kg) | about 1 mg | ~0.33 mL |
| 10 to 25 lb (about 4.5 to 11 kg) | about 1.5 mg | ~0.5 mL |
| 26 to 100 lb (about 12 to 45 kg) | about 3 mg | ~1 mL |
| Over 100 lb (over about 45 kg) | 3 to 6 mg | ~1 to 2 mL |
What stress signals should you read before choosing anything?
Owners routinely buy a product for the wrong problem because they only notice the loud signs. Learn the quiet ones first. They tell you whether you are dealing with mild situational stress (supplement territory) or something bigger:
- Early / mild: lip licking, yawning when not tired, turning the head away, whale eye (whites showing), a lowered or tucked tail, shaking off when dry.
- Escalating: panting without heat or exercise, pacing, refusing food or treats they normally love, clinging, hiding, trembling.
- Serious, so stop and call your vet: destructive escape attempts at doors or crates, self-injury, house-soiling in a reliably trained dog, drooling with dilated pupils, distress that begins the moment you pick up your keys.
Calming options Australians already see on the shelf
Most Australians shop for calming products at Petbarn, Pet Circle or Petstock, or ask their vet clinic. Prices below were seen on 7 October 2026 and change often. These products work differently from each other, so treat this as a map of the market rather than a like-for-like ranking.
| Product | Format and size | Price seen |
|---|---|---|
| Zylkene 225 mg (10 to 30 kg) | 30 capsules | A$95.14 RRP at Petstock |
| Adaptil Calm diffuser refill | 48 mL | A$116.99 at Petbarn |
| PAW Complete Calm Chews | 300 g | A$38.97 at Petstock |
| Pure Majesty Melatonin Drops | Liquid, dosed by weight | A$47 a bottle, free shipping, duties and GST prepaid |
Zylkene is the alpha-casozepine product named in the Béata trial above. If your vet suggests it for a specific problem, follow that advice; Pure Majesty's drops also contain alpha-casozepine (25 mg per mL) alongside the melatonin.
When should you call a vet instead of buying a supplement?
This section matters more than the product comparison. Book a veterinary appointment, not a checkout, if any of the following apply:
- Separation anxiety with panic: escape attempts, broken teeth or nails, injury while confined. This needs a structured behaviour plan and often medication.
- True noise phobia that worsens year over year, or generalises from fireworks to any sudden sound.
- Sudden behaviour change in an adult or senior dog. New anxiety can be pain, endocrine disease, sensory loss or canine cognitive dysfunction, so a medical workup comes first.
- Aggression of any kind. Never manage this with a supplement alone; ask for a referral to a veterinary behaviourist.
- Your dog takes medication (especially sedatives, SSRIs, anticonvulsants or blood-thinners), is pregnant, nursing, diabetic, or has liver or kidney disease. Clear any supplement with your vet first, including melatonin.
Two more safety notes worth repeating: never give a human melatonin gummy without checking for xylitol, which is toxic to dogs (the Pure Majesty drops are xylitol-free), and never combine several calming products without totalling the actives with your vet. For prescription options and how they differ from supplements, see our overview of calming meds for dogs.
How should you set expectations over the first month?
- First use: for situational products, give ahead of the trigger, not during the panic. Once a dog is already over threshold, very little helps.
- Weeks 1 to 2: keep a two-line daily log: the trigger, and what your dog did. Owner memory is unreliable; a log is the only way to tell a real change from a quiet week.
- Weeks 3 to 4: if your log shows no difference at all, stop and reassess with your vet rather than stacking a second product on top.
- Always: pair any supplement with environment work: a covered crate or safe room, white noise, closed blinds, and a predictable routine. In the published trials, behaviour modification was almost always running alongside the supplement.
Summer adds its own stress for Australian dogs. The RSPCA recommends walking early or late in the day and checking pavement heat with the back of your hand for five seconds, and a hot, panting dog is not a dog you can fairly judge for anxiety. For the full picture of triggers, routines and ingredient categories, our dog anxiety supplement guide goes deeper.
Dosing a small dog, or a picky one?
Our calming drops for dogs put six disclosed actives in an easy-to-dose liquid, xylitol-free, adjustable by volume to your dog's weight. A$47 a bottle, with free shipping to Australia and duties and GST prepaid. The 60-day voluntary money-back offer is subject to our refund policy and does not limit your rights under Australian Consumer Law.
Frequently asked questions
Which calming supplement for dogs is better, Pure Majesty or Zesty Paws?
Neither is universally better; they solve different problems. Pure Majesty Melatonin Drops pair melatonin with L-theanine, alpha-casozepine, chamomile, magnesium and vitamin B6 in a liquid you can dose to body weight and give ahead of a specific event or bedtime. Zesty Paws Calming Chews are a flavoured daily soft chew built on L-theanine, tryptophan and herbs for everyday routine use. Pick the liquid for precision and situational or sleep use, the chew for a palatable daily routine.
Do calming supplements for dogs actually work?
The honest answer is that evidence is limited. Published canine studies are small, often open-label, and frequently combine the supplement with behaviour therapy, so the supplement's independent effect is hard to isolate. Some owners report meaningful improvement in mild, situational stress; others see nothing. Clinical anxiety needs a veterinary behaviour plan, not a supplement.
Does Zesty Paws Calming Chews contain melatonin?
The Australian product page names L-theanine, tryptophan, chamomile, valerian root, passionflower, ginger root and magnesium as its actives; melatonin is not among them. If melatonin specifically is your goal, a dedicated product with the melatonin amount disclosed lets you dose to your dog's weight.
Is melatonin for dogs safe?
Melatonin is widely used off-label in veterinary practice and is generally well tolerated at weight-appropriate doses, but controlled canine data is limited. Confirm the dose with your veterinarian, start low, and never use a human product that contains xylitol. Check with your vet before use in puppies, pregnant or nursing dogs, or any dog on medication or with a diagnosed condition.
Can I give a calming chew and melatonin together?
Not without veterinary input. Combining products can stack overlapping actives, and a sedative effect on top of prescription medication can be a real problem. Total the actives with your vet before running two products at once.
What is L-theanine and how does it differ from melatonin for dogs?
L-theanine is an amino acid found in tea leaves, studied in small canine trials for supporting composure and typically given as part of a daily routine. Melatonin is a hormone involved in the sleep-wake cycle, used ahead of a known stressor or at bedtime. One targets everyday composure, the other targets sleep and specific events.
How much do Pure Majesty Melatonin Drops cost in Australia, and is shipping free?
One bottle is A$47. Buy 2, get 1 free is A$94, and buy 3, get 2 free is A$141. Shipping is free worldwide, and orders to Australia ship with duties and GST prepaid (DDP), so there is nothing to pay on delivery.
Sources. Béata C. et al., Effects of alpha-casozepine (Zylkene) versus selegiline hydrochloride on anxiety disorders in dogs, Journal of Veterinary Behavior 2007;2(5):175–183, DOI 10.1016/j.jveb.2007.08.001. Pike A. et al., An open-label prospective study of the use of L-theanine (Anxitane) in storm-sensitive client-owned dogs, Journal of Veterinary Behavior 2015. DePorter T., case report series on clinical effectiveness and safety of a magnolia/phellodendron + L-theanine nutraceutical for behavioural support in dogs and cats, 2016. Is Alpha-casozepine Efficacious at Reducing Anxiety in Dogs?, Veterinary Evidence 2017;2(3). Product details reflect the Pure Majesty Pets and Zesty Paws Australia product pages at the time of writing. RSPCA Australia heat advice: 4 ways to keep your dog cool in summer.
Disclaimer. Zesty Paws is a trademark of its respective owner, referenced here for comparison and identification only. Pure Majesty Pets is not affiliated with, endorsed by, or sponsored by Zesty Paws. Formulations may change, so always read the current label. This article is educational and is not a substitute for professional veterinary advice. Always consult your veterinarian before starting any supplement, especially for pregnant, nursing or medicated dogs, or dogs with existing health conditions.