Quick answer
Our top picks are AyurPet's herb-only Ayurvedic drops: CoolCalm+ (built on ashwagandha, the herb with the strongest dog trials) for stress, HipOJoint (boswellia and turmeric) for joints, GoodGut+ (Triphala) for digestion, and the Trio for seniors. Choose products that list amounts, avoid metal-based preparations, and check with your vet.
Key takeaways
- Our top picks: the AyurPet range. CoolCalm+, HipOJoint (rated 4.65 by 115 customers), GoodGut+ (rated 4.7 by 51) and the Trio, all herb-only with no metals.
- Best dog evidence: ashwagandha root extract (placebo-controlled trials in dogs), a valerian, passionflower and tryptophan blend for fireworks fear (one 44-dog trial), and turmeric and boswellia extracts for joints (mixed or uncontrolled results).
- Rooted in tradition: Triphala, Brahmi, Giloy, Neem and chamomile have centuries of use; research in dogs is still catching up.
- The Ayurvedic quality problem is real: in a 2008 JAMA study, 20.7% of 193 Ayurvedic medicines bought online contained detectable lead, mercury or arsenic, rising to 40.6% of rasa shastra products that deliberately include metals.
- What to buy: a product made for dogs, with every amount listed, batch testing including heavy metals, and no metal or mineral bhasma ingredients.
What are herbal supplements for dogs?
A herbal supplement for dogs is a product whose actives are plants or plant extracts, given to support a body system rather than treat a disease. Ayurvedic supplements use herbs and formulas from Ayurveda, India's traditional system of medicine, such as ashwagandha, turmeric and Triphala.
What Ayurveda adds is 3,000 years of thinking about how herbs work together. Classical texts describe each herb by its taste (rasa), its warming or cooling potency (virya) and its effect on the three doshas, and combine herbs so they balance one another: Triphala, three fruits in one formula, is the classic example. One caution: some traditional preparations deliberately include processed metals, the biggest safety issue in this category (more below). If you want the philosophy, doshas and history, our complete guide to Ayurveda for dogs covers them. This page is the buying guide.
Which herbal supplements for dogs have the best evidence?
Ashwagandha has the strongest controlled evidence in dogs of any Ayurvedic herb, followed by a valerian blend for noise fear and by turmeric and boswellia extracts for joints, where results are mixed. Milk thistle is used by vets for liver support, and most other popular herbs rest on tradition and lab data.
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Herbal supplements for dogs
Which herbs have real dog evidence?
Tradition and clinical proof are different things. Here is where popular herbs stand, based on studies in dogs.
Herb
Best study in dogs
Rating
Ashwagandha Withania somnifera
Placebo-controlled trial, 24 dogs, 15 mg/kg a day: lower cortisol and anxiety scores
Early, controlled
Valerian blend with passionflower, tryptophan
Placebo-controlled trial, 44 dogs: less fear of fireworks
One trial
Turmeric Curcuma longa
61 dogs with arthritis: vets saw improvement, force plate did not
Mixed
Boswellia Boswellia serrata
Open study, no placebo, 29 dogs: 400 mg per 10 kg a day
Early, uncontrolled
Milk thistle Silybum marianum
Used for liver disease and toxins; a 2023 review found doses often poorly reported
Limited
Triphala, Brahmi, Giloy, Neem, chamomile
Traditional use and lab or rodent studies; no controlled dog trials found
Traditional only
Sources: Kaur et al., 2022; Ramos et al., 2024; Innes et al., 2003; Reichling et al., 2004; Tedesco & Guerrini, 2023. Not veterinary advice.
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| Herb | Traditionally used for | Best evidence in dogs | Our rating |
|---|---|---|---|
| Ashwagandha (Withania somnifera), an Ayurvedic adaptogenic root | Stress, vitality, ageing | Randomised, placebo-controlled trial in 24 stressed dogs: 15 mg/kg of root extract daily for 4 weeks lowered cortisol and owner-rated fear and anxiety, with no adverse events reported (Kaur et al., 2022) | Early, controlled |
| Valerian (Valeriana officinalis) in a blend | Nervousness, sleep | Randomised, placebo-controlled trial in 44 firework-fearful dogs: a tryptophan, valerian and passionflower supplement reduced fear scores more than placebo (Ramos et al., 2024). The blend was tested, not valerian alone | One controlled trial |
| Turmeric (Curcuma longa), known as Haridra in Ayurveda | Inflammation, joints, skin | In 61 dogs with osteoarthritis, a turmeric extract (P54FP) improved vets' overall assessments but not force-plate measurements (Innes et al., 2003). A curcuminoid blend reduced pain on manipulation in 42 dogs (Comblain et al., 2017) | Mixed |
| Boswellia (Boswellia serrata), Indian frankincense, Shallaki | Joint stiffness | Open study, no placebo, in 29 dogs with joint or spinal disease: 400 mg per 10 kg daily for 6 weeks; improvement was seen in 71% of 24 eligible dogs after two weeks (Reichling et al., 2004) | Early, uncontrolled |
| Milk thistle (Silybum marianum) | Liver | Used in dogs mainly for acute and chronic liver disease and toxin exposure; a 2023 review found no reported problems, but noted doses and products were often poorly described (Tedesco and Guerrini, 2023) | Limited |
| Triphala, Brahmi, Giloy, Neem, chamomile | Digestion, memory, immunity, skin, calm | Traditional use and laboratory or rodent research; we could not find controlled clinical trials of these herbs on their own in dogs | Traditional or lab only |
Most of these trials are small, and "no trials" does not mean "does not work": research in dogs is still catching up with tradition. For deeper dives, read our guides to ashwagandha, turmeric, boswellia, milk thistle and chamomile.
Best herbal supplements for dogs, by need
- Stress and anxiety: our pick is CoolCalm+, built on ashwagandha, which has the best dog data; a valerian blend has one good trial for fireworks. See our best natural calming supplements.
- Joints: our pick is HipOJoint, with Shallaki (boswellia) and Haridra (turmeric); pair it with omega-3 fish oil, which has the strongest joint evidence. Compare options in our best natural joint supplements guide.
- Digestion: our pick is GoodGut+, built on Triphala and Ayurveda's classic digestive herbs. Read our digestive supplements comparison before buying.
- Liver: milk thistle (silymarin or silybin) is the herb vets most often use, but liver problems need a diagnosis first.
- Senior dogs: our pick is the Gut, Calm & Joint Trio, all three formulas as one routine.
Ayurvedic supplements for dogs: the heavy-metal question
Some Ayurvedic medicines contain lead, mercury or arsenic, and two studies in JAMA showed it is not rare. Part of the reason is rasa shastra, a branch of Ayurvedic pharmacy that deliberately combines herbs with processed metals, minerals and gems, often as an ash called bhasma. Contamination also happens in herb-only products.
- 2004, Boston stores: 14 of 70 Ayurvedic herbal medicine products (20%) made in South Asia contained lead, mercury and/or arsenic. If taken as the manufacturers recommended, each of the 14 could result in intake above regulatory standards (Saper et al., 2004).
- 2008, bought online: of 193 Ayurvedic medicines analysed, 20.7% contained detectable lead, mercury or arsenic. The rate was similar for US-made (21.7%) and Indian-made (19.5%) products, and higher for rasa shastra medicines (40.6%) than others (17.1%). Among the metal-containing products, 75% claimed Good Manufacturing Practices, and all exceeded at least one standard for acceptable daily intake (Saper et al., 2008).
These were human medicines, not dog supplements, but the lessons carry over: neither "Made in the USA" nor a GMP claim protected buyers, bhasma or metal ingredients carried the highest risk, and dogs are smaller than people, so a contaminated dose matters more.
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Ayurvedic supplements: quality
About 1 in 5 tested Ayurvedic medicines contained toxic metals
Two JAMA studies tested human Ayurvedic medicines for lead, mercury and arsenic. The lessons apply to anything you give your dog.
2004 · Boston stores
14 of 70
products made in South Asia contained lead, mercury and/or arsenic
2008 · Bought online
20.7%
of 193 products contained detectable lead, mercury or arsenic
2008 study: share of products with metals
US-made
21.7%
Indian-made
19.5%
Rasa shastra (metal-based)
40.6%
Other Ayurvedic
17.1%
Metal-containing products claiming GMP
75%
Sources: Saper et al., JAMA 2004;292(23):2868; Saper et al., JAMA 2008;300(8):915. Human medicines, not pet products.
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Are herbal supplements safe for dogs?
Most herbs used in dog supplements appear well tolerated at studied doses, but "natural" is not the same as safe. Herbs contain active compounds. A veterinary toxicology review found most herbal remedies safe when used as directed under knowledgeable supervision, but some should never be used, and drug interactions are a real concern (Poppenga, 2002).
| Herb or ingredient | Check with your vet first if your dog... | Why |
|---|---|---|
| Ashwagandha | Is pregnant, has thyroid disease, or takes sedatives, anti-seizure or thyroid medication | Human guidance flags thyroid effects, drowsiness and drug interactions (NCCIH) |
| Turmeric with black pepper (piperine) | Takes any regular medication | Piperine inhibits P-glycoprotein and CYP3A4, two systems that handle many drugs, in human cell and liver studies (Bhardwaj et al., 2002) |
| Valerian and other calming herbs | Takes sedatives or behaviour medication | Possible additive sedation; tell your vet everything your dog takes |
| Garlic | Is offered any "natural" blend containing it | Listed as toxic to dogs by the ASPCA (ASPCA) |
| Any herb | Has liver or kidney disease, is pregnant or nursing, is a puppy, or has surgery coming up | Little or no safety data in these groups |
Red flags when buying herbal or Ayurvedic supplements
Walk away from a product that hides its amounts, lists metals or bhasma, promises to cure a disease, or is a human Ayurvedic medicine. A good one names every herb with its amount and can show a recent heavy-metal test.
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Herbal and Ayurvedic supplements
Six red flags on the label
Walk away if you see any of these, whatever the brand or price.
✕
"Proprietary blend" with no amounts
You cannot compare it with doses used in dog studies.
✕
Metal or mineral ingredients
Bhasma, rasa, Swarna, Rajat or Parada signal metal-based preparations.
✕
Claims to cure or treat disease
Supplements support; they do not cure arthritis or liver disease.
✕
No certificate of analysis
Ask for identity, strength and heavy-metal results.
✕
A human Ayurvedic medicine
Dosed for people; may contain metals or unsuitable ingredients.
✕
Toxic extras
Garlic and xylitol have no place in a dog supplement.
Sources: Saper et al., 2004 and 2008, JAMA; ASPCA; US FDA. Not veterinary advice.
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- "Proprietary blend" with no amounts. You cannot compare it with the doses used in dog studies.
- Metal or mineral ingredients. Words such as bhasma, rasa, Swarna (gold), Rajat (silver) or Parada (mercury) signal rasa shastra preparations, the highest-risk group in the JAMA data.
- Disease claims. "Cures arthritis" breaks the rules for supplements.
- No testing on request. Ask for a certificate of analysis that covers identity, strength and heavy metals.
- Human products. Dosed for people, and may contain metals.
- Toxic extras. Garlic, xylitol and some essential oils have no place in a dog supplement (US FDA on xylitol).
For the general quality checklist, including the NASC Quality Seal, see our hub on the best dog supplements.
Herbal supplements for dogs we checked
Our top picks come first, then good alternatives we could verify on each brand's own website. No finished formula here, including ours, has a published dog trial unless we say so.
Our top picks · the AyurPet range
Herb-only Ayurvedic drops, no metals or bhasma
- CoolCalm+ Best for: everyday stress. Ashwagandha, the herb with the strongest dog trials, with Brahmi, Jatamansi, Shankhpushpi, Tagar, Tulsi, Gotu Kola and L-theanine; non-sedative.
- HipOJoint Best for: joints. Boswellia and turmeric, Ayurveda's joint classics, with glucosamine, in chew-free drops.
- GoodGut+ Best for: digestion. Triphala, milk thistle, Bhumi Amla, Yashtimadhu, slippery elm, Bhringraj, ginger, fennel, cumin and black pepper.
- Gut, Calm & Joint Trio Best for: senior dogs. All three together for the connected changes of ageing.
GoodGut+ is rated 4.7 stars from 51 reviews and HipOJoint 4.65 from 115. In AyurPet's own studies, 89% of owners reported calmer behaviour on CoolCalm+ (28 days, 50+ dogs) and 86% reported improved mobility on HipOJoint (internal, not peer-reviewed).
Why they lead: herbs only, with no metals, minerals or bhasma; the herb with the best dog evidence at the centre of each formula; liquid drops that need no breaking down; human-grade, lab tested and certified, no added chemicals.
| Product | Key herbal ingredients (per brand) | Best for | Honest caveat |
|---|---|---|---|
|
AyurPet CoolCalm+ #1 OUR TOP PICK |
Ashwagandha, Brahmi, Jatamansi, Shankhpushpi, Tagar, Tulsi, Gotu Kola, with L-theanine, L-tryptophan, magnesium glycinate and casein hydrolysate | Best overall: everyday stress, Ayurvedic approach | Evidence is for ingredients such as ashwagandha, not the finished formula |
|
AyurPet HipOJoint OUR PICK FOR JOINTS |
Boswellia and turmeric, with glucosamine | Chew-free joint routine | Herbal joint evidence is mixed; glucosamine evidence for pain is weak |
|
AyurPet GoodGut+ OUR PICK FOR DIGESTION |
Triphala, milk thistle, Bhumi Amla, Yashtimadhu, slippery elm, Bhringraj, ginger, fennel, cumin, black pepper | Daily digestive support | Centuries of traditional use; contains black pepper, so check with your vet if your dog takes medication |
| Dorwest Scullcap & Valerian Tablets (UK) | Valerian root 250 mg, mistletoe 150 mg, gentian 48 mg, scullcap 30 mg per tablet; 1 tablet per 5 kg daily | Noise worries, Western herbal approach | Not for pregnant or nursing animals, per the brand; the published valerian trial used a different blend |
| Dorwest BrainCopa (UK) | Bacopa (Brahmi) with DHA | Older dogs, with vet input | Bacopa has little dog-specific evidence |
| Denamarin (Nutramax) | Silybin from milk thistle, with SAMe | Liver support your vet has recommended | Liver disease needs a diagnosis; silybin in a phosphatidylcholine complex is better absorbed in dogs than a standard extract (Filburn et al., 2007) |
In India, Himalaya Wellness, one of the best-known herbal manufacturers, also sells a companion-animal range covering digestion, skin and coat, and joints (Himalaya).
AyurPet's take
We believe Ayurveda has a great deal to offer dogs, and that the category must earn vets' trust: no heavy metals, no vague blends, no cure-all claims.
So we work to a simple rule: herbs only, no metals, minerals or bhasma, and the herb with the best dog evidence at the centre of each formula, such as ashwagandha in CoolCalm+. The traditional herbs around it are there because centuries of use support them, and research in dogs is catching up. The West made Ayurveda global for humans; we are doing it for pets.
Skip any herbal supplement, ours included, if your dog is pregnant, a young puppy, has liver or kidney disease, or takes medication your vet has not checked. And never give a dog a human Ayurvedic medicine.
When to see a vet instead
Do not reach for a herbal remedy first if your dog:
- Has yellow gums or eyes, a swollen belly, or vomiting with lethargy (possible liver problems)
- Is limping badly, crying out or cannot settle (pain needs a diagnosis)
- Shows sudden, severe anxiety, aggression or confusion
- Has eaten a human herbal or Ayurvedic product, or a garlic-containing supplement
- Gets vomiting, diarrhoea or unusual sleepiness after starting any supplement
Frequently asked questions
What are the best herbal supplements for dogs?
Our top picks are AyurPet's CoolCalm+ for stress (built on ashwagandha, the herb with the strongest dog evidence), HipOJoint for joints (boswellia and turmeric) and GoodGut+ for digestion (Triphala). For the liver, milk thistle is commonly used by vets. Choose a dog-specific product that lists every amount.
Are Ayurvedic supplements safe for dogs?
Herb-only Ayurvedic supplements made for dogs appear safe for most healthy dogs at labelled doses, but quality varies. In a 2008 JAMA study, 20.7% of Ayurvedic medicines bought online contained lead, mercury or arsenic. Avoid metal-based preparations and ask for heavy-metal testing.
Can I give my dog human Ayurvedic medicine?
No. Human Ayurvedic medicines are dosed for people, may contain metals in traditional rasa shastra preparations, and can include ingredients unsuitable for dogs. Use a product made for dogs and check it with your vet.
Do herbal supplements interact with dog medications?
They can. Ashwagandha may add to sedatives and affect thyroid treatment, and black pepper extract (piperine) inhibits drug-handling systems in human studies. Show your vet the label of any herbal product if your dog takes medication.
What is the difference between herbal and Ayurvedic supplements for dogs?
Ayurvedic supplements are herbal supplements based on Ayurveda, India's traditional medicine. They often combine many herbs, such as ashwagandha, Brahmi and Triphala. Herbal supplements can come from any tradition, including Western herbs like valerian and milk thistle.
How long do herbal supplements take to work in dogs?
Usually weeks. The ashwagandha trial measured results at 4 weeks, the boswellia study at 2 and 6 weeks, and the turmeric trial over 8 weeks. Give one product 4 to 8 weeks before judging it, unless side effects appear.
What does "bhasma" mean on an Ayurvedic label?
Bhasma is a traditional Ayurvedic preparation made by processing metals or minerals into an ash. Products containing them belong to rasa shastra, the group with the highest rate of toxic metals in published testing. We do not recommend them for dogs.
How we researched this: Written by the AyurPet research team from 17 sources listed below, including randomised trials in dogs, two JAMA studies of heavy metals in Ayurvedic medicines, a veterinary toxicology review and brand product pages checked on 20 October 2026. Last reviewed October 2026.
References
- Saper RB, Kales SN, Paquin J, et al. Heavy metal content of ayurvedic herbal medicine products. JAMA 292(23):2868-2873, 2004. doi.org/10.1001/jama.292.23.2868
- Saper RB, Phillips RS, Sehgal A, et al. Lead, mercury, and arsenic in US- and Indian-manufactured Ayurvedic medicines sold via the Internet. JAMA 300(8):915-923, 2008. doi.org/10.1001/jama.300.8.915
- Kaur J, Seshadri S, Golla KH, Sampara P. Efficacy and safety of standardized Ashwagandha (Withania somnifera) root extract on reducing stress and anxiety in domestic dogs: a randomized controlled trial. Journal of Veterinary Behavior 51:8-15, 2022. doi.org/10.1016/j.jveb.2022.03.002
- Ramos D, Yazbek KVB, Brito AC, et al. Is it possible to mitigate fear of fireworks in dogs? A study on the behavioural and physiological effects of a psychoactive supplement. Animals 14(7):1025, 2024. PMC11010855
- Innes JF, Fuller CJ, Grover ER, et al. Randomised, double-blind, placebo-controlled parallel group study of P54FP for the treatment of dogs with osteoarthritis. Veterinary Record 152(15):457-460, 2003. doi.org/10.1136/vr.152.15.457
- Comblain F, Barthélémy N, Lefèbvre M, et al. A randomized, double-blind, prospective, placebo-controlled study of the efficacy of a diet supplemented with curcuminoids extract, hydrolyzed collagen and green tea extract in owner's dogs with osteoarthritis. BMC Veterinary Research 13:395, 2017. PMC5738810
- Reichling J, Schmökel H, Fitzi J, et al. Dietary support with Boswellia resin in canine inflammatory joint and spinal disease. Schweizer Archiv für Tierheilkunde 146(2):71-79, 2004. PubMed 14994484
- Tedesco DEA, Guerrini A. Use of milk thistle in farm and companion animals: a review. Planta Medica 89(6):584-607, 2023. PMC11961297
- Filburn CR, Kettenacker R, Griffin DW. Bioavailability of a silybin-phosphatidylcholine complex in dogs. Journal of Veterinary Pharmacology and Therapeutics 30(2):132-138, 2007. PubMed 17348898
- Poppenga RH. Herbal medicine: potential for intoxication and interactions with conventional drugs. Clinical Techniques in Small Animal Practice 17(1):6-18, 2002. doi.org/10.1053/svms.2002.27785
- Bhardwaj RK, Glaeser H, Becquemont L, et al. Piperine, a major constituent of black pepper, inhibits human P-glycoprotein and CYP3A4. Journal of Pharmacology and Experimental Therapeutics 302(2):645-650, 2002. PubMed 12130727
- Ashwagandha. National Center for Complementary and Integrative Health (NIH). nccih.nih.gov/health/ashwagandha
- Garlic. ASPCA Animal Poison Control Center. aspca.org
- Paws Off Xylitol; It's Dangerous for Dogs. US Food and Drug Administration. fda.gov
- Scullcap & Valerian Tablets for Dogs and Cats; BrainCopa Tablets. Dorwest Herbs (brand site), checked 2026. dorwest.com
- Animal health products: companion care. Himalaya Wellness (brand site), checked 2026. himalayawellness.com
- Denamarin liver health supplements. Nutramax Laboratories (brand site), checked 2026. denamarin.com
Before you start: herbal supplements are not medicines. Check with your vet before giving one, especially if your dog takes medication, is pregnant or has a health condition. If you would like a second opinion, our online vet consultation can help.