Essential Oils for Dogs and Cats: Complete and Safe Guide
Essential oils for dogs and cats: a safe guide on dilutions, diffusion, and natural routines — with an in-depth look at chemical repellents, oils to avoid, and support for elderly pets.
Updated: May 2026
Which essential oils are safe for dogs and cats? And most importantly: how to use them without risks (dilutions, diffusion, applications)? In this guide, you will find practical and cautionary rules for using aromatherapy with pets, remembering that dogs and cats have different sensitivities and metabolisms. The approach must be gradual, at minimal doses, and based on observing the animal.
I have two cats — one old and one young. Their health is as important to me as that of any family member. Over time, I've become increasingly careful about the products I apply to them as repellents: not for ideology, but out of the same curiosity that led me to aromatherapy. When I started reading about what's behind certain chemical active ingredients, I wanted to find an alternative. I had AromaRepel developed for this reason — for my cats first and foremost, and for anyone who shares the same philosophy.
— Lorenza Poletto, aromatherapist and founder of EUODIA
Table of Contents
- Chemical Repellents and Health Risks: What the Research Says
- Essential Safety Rules
- Essential Oils to Avoid: Complete Table
- Why Use Aromatherapy with Animals (with caution)
- Differences between Dogs and Cats
- Age and Sensitivity: Puppies, Adults, and Seniors
- The Elderly Cat and Cognitive Disorientation: How Aromatherapy Can Help
- Most Useful Oils and Bases (Neem, Lavender, Chamomile, Aloe)
- 3 Areas of Use: Fur, Skin, Olfaction
- How to Dilute Correctly
- Essential Oils vs. Hydrolats
- Common Mistakes to Avoid
- Signs of Intolerance
- Safety Checklist
- FAQ
- Euodia Selection for Animals
- Sources and Scientific References
Chemical Repellents and Animal Health Risks: What the Research Says
Before delving into the details of essential oil use, it's helpful to understand the context that informs the choice of a natural approach. In recent years, several scientific studies have examined the long-term safety of certain categories of chemical parasiticides commonly used on dogs and cats.
Methodological Note: The evidence cited in this section primarily comes from laboratory animal studies and epidemiological analyses of dogs and cats. Results should be interpreted with caution: they do not imply that every antiparasitic product is dangerous for all animals, but they do indicate areas of concern recognized by the scientific and regulatory community.
Some Categories of Active Ingredients Under Observation
Some substances found in flea collars, spot-ons, and chemical antiparasitic sprays have been evaluated by bodies such as the US EPA and IARC (International Agency for Research on Cancer):
- Organophosphates and related compounds: Some molecules belonging to this family — historically used in insecticides and antiparasitics — have been associated, in laboratory animal studies, with effects on the liver, kidneys, and thyroid. Some have been classified as "potentially carcinogenic to humans" based on animal evidence. In Europe, several of these compounds are already banned or subject to stringent restrictions.
- Synthetic pyrethroids: Widely used in sprays and spot-ons, they generally show a better safety profile than organophosphates, but chronic exposures have been studied in relation to possible endocrine effects and, in some animal models, thyroid tumors.
- Neonicotinoids: Already at the center of debate for their effects on pollinating insects, they are also receiving increasing attention regarding safety for mammals in cases of prolonged exposure.
- Isoxazolines (used in some oral antiparasitics): The primary documented risk profile is neurological (tremors, seizures), particularly in predisposed individuals. Evidence of direct carcinogenicity is, to date, limited.
Exposure in Pets: An Often Underestimated Aspect
Some analyses of urinary samples from dogs and cats treated with chemical antiparasitics have detected metabolite concentrations that, in certain cases, exceed chronic reference doses established for human use. This does not automatically imply an immediate risk but suggests that the cumulative exposure of pets warrants attention, especially in the case of repeated treatments over time.
Epidemiological studies on dogs have also highlighted associations — not necessarily causal — between exposure to pesticides (including antiparasitics) and certain forms of cancer such as lymphomas, bladder tumors, and oral carcinomas. Cats, due to their grooming habits, may be particularly exposed to products applied to their fur.
A Balanced Perspective
This evidence does not imply that chemical antiparasitic products should be avoided entirely: in many contexts (severe infestations, parasite-borne diseases), their use remains clinically justified and should be evaluated with a veterinarian. However, they indicate that, where conditions permit, it is worth considering integrative or alternative approaches — such as those based on essential oils and natural repellents — and maintaining conscious attention to the products we use on our animals.
In Brief: Essential Safety Rules
- Never apply essential oils undiluted to skin or fur.
- Dogs: Start with very low dilutions (0.25–0.5%) and only increase if well tolerated.
- Cats: Prefer hydrolats; the use of essential oils requires extreme caution and, ideally, veterinary guidance.
- Diffusion: Short sessions, a ventilated environment, and freedom for the animal to leave.
Important Disclaimer: This article is for informational purposes only and does not replace veterinary advice. In case of doubts, pathologies, pregnancy, puppies/kittens, or particularly sensitive subjects, always consult a professional before using essential oils or aromatic products.
Essential Oils to Avoid: Complete Table
Before discussing what can be used, it's essential to know what should never be used. Some essential oils are toxic to our animals, even in small doses — whether by diffusion, contact, or accidental ingestion. The following list is indicative and not exhaustive: when in doubt, the guiding principle is always maximum caution.
| Essential Oil | Dog | Cat | Main Reason for Risk |
|---|---|---|---|
| Tea tree (Melaleuca) | Diluted only, with caution | Avoid | Neurological and cutaneous toxicity in cats; reported cases of poisoning even at low doses |
| Eucalyptus (rich in cineole) | Diluted only, with caution | Avoid | Cineole is slowly metabolized by cats; mucosal and nervous system irritation |
| Peppermint | Diluted only, with caution | Avoid | High menthol content, toxic to feline liver; irritating to puppies and kittens |
| Cinnamon (bark and leaf) | Avoid | Avoid | Strongly irritating to skin and mucous membranes; potentially hepatotoxic |
| Clove | Avoid | Avoid | Eugenol is toxic to cats; severe irritation and possible hepatotoxicity |
| Thyme (ct thymol/carvacrol) | Avoid | Avoid | Irritating to mucous membranes, potentially toxic to the nervous system and liver |
| Oregano | Avoid | Avoid | Rich in carvacrol and thymol; strongly irritating, not recommended for animals |
| Camphor | Avoid | Avoid | Neurotoxic even in small doses; absorbed via skin and respiratory tract |
| Wintergreen / Birch | Avoid | Avoid | Rich in methyl salicylate, similar to aspirin: toxic to dogs and fatal to cats |
| Citrus (lemon, orange, grapefruit — EO) | Diluted only, with caution | Avoid | Limonenes in high concentrations are irritating to cats; hydrolats are safer |
| Ylang ylang | Diluted only, with caution | Avoid | May cause lethargy, vomiting, and hypotension; very concentrated, not suitable for cats |
| Rosemary ct camphor | Avoid | Avoid | High camphor content; not recommended for puppies, seniors, and epileptics |
Practical Rule: If an oil is rich in phenols (eugenol, thymol, carvacrol), ketones (camphor, pulegone), or monoterpenes in high concentration, treat it as potentially toxic to cats until proven otherwise. Cats lack certain hepatic enzymes that metabolize these compounds in humans and dogs.
Why Use Aromatherapy (with caution) with Pets
When used correctly and with appropriate dilutions, some aromatherapy products can:
- support natural repellency (fleas, ticks, mosquitoes) in dogs;
- help with mild skin irritations (redness, itching, bites);
- promote a more relaxing environment in stressful situations (thunderstorms, travel, separation anxiety);
- offer olfactory and cognitive support to elderly animals, through delicate and constant aromatic stimuli.
Differences between Dogs and Cats: Why Safety Varies
Dogs: generally tolerate some essential oils better if highly diluted, but doses must be much lower than for human use.
Cats: are more sensitive to many aromatic compounds due to a hepatic enzyme deficiency (glucuronyl transferase) that slows or prevents the metabolism of certain aromatic molecules, particularly phenols, oxidized terpenes, and ketones. For this reason, for cats it is advisable to prioritize hydrolats and non-aromatic strategies, and to evaluate any use of essential oils with caution.
Caution for cats: Avoid direct application of essential oils to skin or fur. Especially avoid the oils listed in the table above. If cats are present in the home, minimize ambient diffusion and prefer hydrolats.
Age and Sensitivity: Puppies, Adults, and Seniors
The animal's age is an often-overlooked but crucial variable. The same dilutions suitable for a healthy adult dog may be excessive for a puppy or an elderly animal with less efficient organs.
| Life Stage | Dog | Cat | Practical Notes |
|---|---|---|---|
|
Puppies / Kittens (under 6 months) |
Avoid essential oils | Avoid essential oils | Immune and hepatic systems still immature. Only very diluted hydrolats, with veterinary supervision. |
|
Healthy Adults (approx. 1–7 years) |
Cautious use possible | Hydrolats only | Minimal dilutions, constant observation, short diffusion sessions. |
|
Seniors (over 7–8 years) |
Reduced doses, gentle oils | Gentle hydrolats, with care | Liver and kidney function possibly reduced. Prefer oils with low ketone and phenol content. Consult a veterinarian. |
| Under therapy / with medical conditions | Consult a veterinarian | Consult a veterinarian | Possible interactions with medications. Do not use without professional guidance. |
The Elderly Cat and Cognitive Disorientation: How Aromatherapy Can Help
My older cat went through a period of evident disorientation: nocturnal awakenings, persistent meowing without apparent reason, difficulty finding familiar places. Recognizing the signs of feline cognitive dysfunction was the first step. The second was understanding how I could support her — without exacerbating the situation with overly intense stimuli. Aromatherapy, used with extreme gentleness, became part of a comforting routine.
— Lorenza Poletto
Feline Cognitive Dysfunction: What Happens in Elderly Cats
Cats, like dogs and humans, can develop a form of cognitive decline with age, often compared to Alzheimer's or senile dementia. Feline Cognitive Dysfunction (FCD) typically manifests after 10–12 years of age and can include:
- spatial disorientation (circling, staring at corners, not finding the litter box or food bowl);
- persistent nocturnal vocalization (the "meow into the void" at night);
- altered sleep-wake cycle;
- changes in social interaction (more distant or, conversely, more clingy);
- reduced grooming.
Note: these signs can also have physical causes (pain, hyperthyroidism, hypertension, kidney problems). If your cat shows these behaviors, the first step is a complete veterinary check-up, including blood tests and blood pressure measurement.
The Role of Olfaction and Olfactory Memory in Cats
In cats, the olfactory system is extraordinarily developed and closely connected to the limbic system, the center of emotions and memory. This means that olfactory stimuli can reach the cat's elderly brain more directly than many other sensory inputs — even when sight or hearing weaken.
The idea behind using aromatherapy for senior cats is not to "treat" dementia, but to use familiar, consistent, and reassuring scents to build an olfactory anchoring routine: a signal repeated over time that tells the nervous system, "you are safe, you are home."
Which oils (or hydrosols) can support senior cats?
Fundamental premise: With senior cats, the rule "less is more" applies even more strongly. An aged liver metabolizes with even greater difficulty. Never use essential oils in direct application. Diffusion, if used at all, should be very brief, with only 1 drop, an open door, and never in the room where the animal sleeps.
True Lavender Hydrosol — the gentlest option
True lavender hydrosol is probably the most manageable choice for senior cats. It contains trace amounts of linalool and linalyl acetate in very low concentrations, without the more risky molecules found in essential oils. It can be lightly misted on their bed or a blanket (not directly on the cat's fur), creating a constant olfactory reference point. The desired effect is familiarity and calm, not a specific "therapy."
How to use it: 1–2 spritzes on the bedding fabric, away from the cat's face. Not daily — every 2–3 days, observing their reaction. If the cat approaches and sniffs curiously, it's a good sign. If they move away or rub their nose, discontinue use.
Roman Chamomile Hydrosol — support for evening routine
Roman chamomile in hydrosol form is one of the gentlest options available. Its profile is particularly suitable for situations of nighttime agitation, typical of senior cats with disorientation. Again: on fabric, not on fur, and with great moderation.
Frankincense (Boswellia) — very brief environmental diffusion only, with great caution
Frankincense essential oil has one of the "safest" aromatic profiles for environmental diffusion with cats, thanks to the prevalence of monoterpenes (alpha-pinene) and a low content of molecules particularly problematic for feline metabolism. Some studies on the use of frankincense in human aromatherapy document its effects on the nervous system, including anxiolytic and cognitive support properties. For senior cats, a very brief diffusion (5 minutes, 1 drop, open door) can be considered a moment of calm — but only if the animal shows no signs of discomfort.
Personal note: I use frankincense in my daily meditation routine. I have observed that my senior cat, instead of moving away, often tends to stay in the room. This is not scientific proof, but it is an observation — and in the aromatherapy approach, observing the animal is always the main guide.
Routine as medicine: the true goal
More than specific oils, it is the routine itself that holds value for cats with cognitive dysfunction. The aging brain struggles with the unpredictable and finds comfort in repetition. Creating a ritual — the same time, the same hydrosol on the same bed, the same sequence of actions — offers a sensory anchor that goes beyond the single aroma. Scent becomes the thread of a moment of security.
To remember: aromatherapy for senior cats is not a cure for feline dementia. It is a support for daily well-being — a way to make the environment more familiar, transitions less stressful, and nights a little calmer. Always in conjunction with veterinary care, never as a replacement.
Most useful oils and bases
Neem Oil (vegetable oil): natural repellency support for dogs
Neem oil is a vegetable oil (not an essential oil) often used as a natural support for repellency and coat care in dogs.
- support for repellency (fleas/ticks/mosquitoes);
- dermo-purifying action (useful in delicate hygiene routines);
- excellent as an "oily" component in sprays or localized applications.
- Dogs: can be used diluted.
- Cats: caution. If used, only with veterinary indication and in controlled formulations.
True Lavender (Lavandula angustifolia): environment and relaxation routine
True Lavender is among the essential oils with the most manageable profile, always with appropriate dilutions.
- support for relaxation and evening routine;
- useful in environmental contexts (brief and controlled diffusion);
- in some dog routines, it can be used in a targeted and very diluted manner.
For cats: prefer lavender hydrosol. If considering environmental diffusion, do so only for a few minutes, with a maximum of 1 drop, in a ventilated room with freedom to leave.
Discover Euodia True Lavender
Alternatively: Lavender Hydrosol (gentler)
Blue Chamomile (Matricaria recutita): soothing support for reactive skin
Blue Chamomile is valued in soothing routines for reactive skin. In animals, it is used very cautiously and only on limited areas.
- soothing support for redness and skin sensitivity;
- useful in gels or neutral cosmetic bases (for dogs).
For cats: prefer chamomile hydrosol or pure aloe (without essential oils), unless otherwise instructed by a veterinarian.
Discover Euodia Blue Chamomile
Alternatively: Chamomile Hydrosol (gentler)
AromaRepel: ready-to-use repellent spray for dogs and cats
AromaRepel is Euodia's ready-made formula, specially designed for dogs and cats: no dilution calculations, no risk of incorrect dosage. 100% plant-based composition, alcohol-free.
- organic citronella, Neem oil, geranium, peppermint, thyme;
- repellent action against fleas, ticks, mosquitoes, and sandflies;
- 100 ml spray bottle, recyclable PET packaging.
- Dogs and cats: formulated respecting the animals' olfactory sensitivity.
- Avoid eyes, nose, and mouth. Shake before use.
Aloe vera: natural base for topical applications
Pure Aloe Vera gel (99–100%) is often used as a base for soothing routines: light texture, non-greasy, useful as a refreshing and calming support, practical on localized areas (avoiding mucous membranes and eyes).
3 areas of use: coat, skin, olfaction
1) On the coat: natural repellency (especially for dogs)
For dogs, one of the most common uses is natural repellency with very diluted formulas. Always avoid the muzzle, eyes, inner ears, genitals, and areas that the animal frequently licks.
DIY repellent spray formula (for dogs only)
- 100 ml of hydrosol (e.g., lavender) or distilled water
- 1 teaspoon (approx. 5 ml) of vegetable oil (jojoba, fractionated coconut, sweet almond)
- 5–10 total drops (max) chosen from: true lavender, geranium, Atlantic cedarwood
How to use: spray onto your hands and massage into the coat (back/neck), avoiding the muzzle. Always shake before use.
Prefer a ready-made formula? AromaRepel is Euodia's repellent spray specially formulated for dogs and cats: 100% plant-based, alcohol-free, with organic citronella, Neem oil, geranium, peppermint, and thyme. Shake and spray on the coat — no dilution calculations needed.
Localized application (dog)
- Dilute to 1–3% in vegetable oil (e.g., 3–9 drops in 30 ml of base).
- Apply a few drops to the base of the neck and upper back (areas difficult to lick).
- Observe the reaction for 24 hours.
Never apply to mucous membranes, eyes, inner ears, genitals, open wounds, or areas that are heavily licked.
2) On the skin: soothing routines (prudent topical use)
For small irritations or bites, very light formulas can be used, on limited areas and with preliminary testing.
Practical recipe (dog): aloe gel + 1 essential oil
- 30 ml of aloe gel
- 1 drop of true lavender or blue chamomile (approx. 0.1–0.25%)
Apply to a small area 1–2 times a day and observe. If redness or discomfort appears, discontinue use.
For cats: prefer only pure aloe or hydrosols (sprayed from a distance, avoiding the muzzle), unless otherwise instructed by a veterinarian.
3) By olfaction: home diffusion and emotional well-being
Diffusion can be useful in some situations (storms, visitors, travel, comfort routines for seniors), but it must always be brief and not forced.
Golden rules for diffusing with animals in the home
- Short sessions: 10–15 minutes (even less for cats, 5 minutes).
- Ventilated room and open door.
- Use 1–2 drops (less than usual).
- Diffuser away from beds/bowls.
- If the animal moves away or shows discomfort: stop immediately and ventilate.
"More manageable" oils for the environment (dogs)
- True Lavender
- Roman Chamomile
- Frankincense (always lightly and monitoring reaction)
For senior cats: hydrosols on fabric only
See the dedicated section above. The rule is always: less intensity, more consistency. A gentle, repeated routine is more valuable than intense, sporadic diffusion.
How to dilute correctly (the most important part)
Animals require much lower dilutions than for human use. In general, for dogs, work at 0.25–1% (depending on use and individual tolerance). For cats, topical use of essential oils is not recommended.
| Animal | Use | Prudent range | Practical example |
|---|---|---|---|
| Adult dogs | Skin (limited areas) | 0.1–0.5% | 1 drop in 20–30 ml of base |
| Adult dogs | Coat (spray) | 0.5–1% | 5–10 drops in 100 ml |
| Adult dogs | Diffusion | — | 1–2 drops for 10–15 min |
| Cats | Topical use | Not recommended | Prefer hydrosols / pure aloe |
| Senior cats | Bedding fabric (hydrosol) | — | 1–2 spritzes on fabric, every 2–3 days |
Essential oils vs. hydrosols: what changes (especially with cats)
Hydrosols (aromatic waters) contain very low amounts of aromatic components and are often the most manageable option in homes with animals, especially cats. EUODIA hydrosols are from Essenthya, a reference artisanal laboratory for quality and traceability.
| Characteristic | Essential oils | Hydrosols |
|---|---|---|
| Concentration | Very high | Very low (traces) |
| Use with cats | To be avoided / very limited | Often preferable |
| Use with senior cats | Only very brief diffusion, selected oils | On bedding fabric, with moderation |
| Application | Never neat | Possible gently (avoiding the muzzle) |
Signs of intolerance: what to observe
- sudden departure from the room or treated area;
- repeated sneezing, excessive nose licking, rubbing the muzzle;
- increased salivation, vomiting, diarrhea;
- lethargy, tremors, breathing difficulties (in these cases, contact the veterinarian immediately).
7-point safety checklist
- Have I checked that the oil is suitable for the species (dog vs. cat)?
- Is the animal at least 6 months old and in good health?
- Have I chosen the minimum possible dilution?
- Have I done a small-area test and observed for 24 hours?
- Can the animal freely move away?
- Do I avoid sensitive areas (muzzle, eyes, mucous membranes, genitals)?
- Do I know how to recognize signs of discomfort and am I ready to stop?
FAQ – Essential oils and animals
Can I use pure essential oils on my dog's fur?
No. Never pure. Always diluted in a base (vegetable oil, aloe, hydrosol) and with very low doses, appropriate for the animal's weight and sensitivity.
Are essential oils dangerous for cats?
Some can be, especially those rich in phenols, ketones, and certain classes of terpenes. Cats lack liver enzymes (glucuronosyltransferases) that neutralize these molecules in humans and dogs. Therefore, with cats, it is preferable to use hydrosols or avoid them altogether. If in doubt, consult a veterinarian.
My cat is elderly and disoriented at night — can I try aromatherapy?
Yes, with great caution and as a support, not a cure. First, consult with your vet to rule out any physical causes (hypertension, hyperthyroidism, pain). If the issue is cognitive, you can try creating an olfactory routine using a lavender or chamomile hydrosol sprayed onto the cat bed's fabric (not directly on the fur), every 2–3 days.
Always observe their reaction: if the cat approaches and relaxes, it's a positive sign. If they move away, respect their choice.
What is the simplest option for a relaxing routine at home?
In many cases, it's more manageable to start with hydrosols and environmental habits (ventilation, routine, reduced stimuli). If diffusing, do so for a few minutes and always observe the animal.
Can I put essential oils on a collar?
No. A collar provides continuous exposure and is too close to the nose, increasing the risk of irritation and adverse reactions. It's better to use diluted sprays on the fur (avoiding the face) or ambient diffusers for very short sessions.
How often can I reapply a natural repellent spray?
It depends on the animal and the context. In general, avoid prolonged daily applications and prefer a "targeted" use, observing tolerance and response. If the dog has sensitive skin, reduce frequency and dosage.
With a pre-formulated spray like AromaRepel, the dilutions are already optimized: follow the instructions on the label.
Discover Euodia's selection dedicated to animals
Products selected for prudent routines and oriented towards the safety of your four-legged companions.
- AromaRepel – Repellent Spray – ready-to-use formula, 100% plant-based, alcohol-free
- Neem Oil – supports repellency in dogs
- True Lavender – for the environment and relaxation routines
- Blue Chamomile – soothing support (prudent topical use)
- Aloe Vera Gel – natural base for topical applications
- Essenthya Hydrosols – a gentle alternative, often preferable for cats
Do you have doubts about what to use in your specific case? Contact us: we will help you find your way with a responsible and tailored approach.
Sources and scientific references
The claims regarding the risks of chemical active ingredients reported in this article are based on the following scientific publications and institutional sources. Research in this field is constantly evolving: the practical indications contained in the article are for informational and educational purposes only and do not replace veterinary advice.
- National Toxicology Program (NTP/NIEHS) — TR-033: Tetrachlorvinphos (CASRN 961-11-5) — Bioassay for possible carcinogenicity.
ntp.niehs.nih.gov - US EPA — Tetrachlorvinphos (TCVP) — Ingredients used in pesticide products.
epa.gov - NCBI/NLM — Summary of data reported — Tetrachlorvinphos.
ncbi.nlm.nih.gov - PMC/NIH — An assessment of exposure to several classes of pesticides in pet dogs and cats.
pmc.ncbi.nlm.nih.gov - Scielo — Genotoxicity assessment of fipronil (Frontline Plus®) in Canis familiaris.
scielo.org - APVMA — Safety of Fipronil in Dogs and Cats: a review of literature.
apvma.gov.au - PubMed/NCBI — Neurological adverse effects of isoxazoline exposure in cats and dogs.
pubmed.ncbi.nlm.nih.gov - MSD Vet Manual — Isoxazoline Toxicosis in Animals — Toxicology.
msdvetmanual.com - The Lancet Oncology / IARC — IARC Monographs Volume 112: Evaluation of five organophosphate insecticides and herbicides (2015).
iarc.who.int - DrFoxOneHealth — Companion Animal Risks of Flea and Tick Insecticides.
drfoxonehealth.com - BBC News — Toxic pet flea treatment chemicals found at damaging levels in rivers.
bbc.com - Landsberg G. et al. — Feline Cognitive Dysfunction Syndrome, Veterinary Clinics of North America: Small Animal Practice, 2010.
pubmed.ncbi.nlm.nih.gov - Gunn-Moore D. et al. — Cognitive dysfunction and the neurobiology of ageing in cats, Journal of Small Animal Practice, 2011.
pubmed.ncbi.nlm.nih.gov
Who wrote this article
Lorenza Poletto — Certified Aromatherapist and founder of EUODIA. Specializing in the use of essential oils for daily well-being, with direct experience in applying aromatherapy in a domestic context with animals.
The information contained in this article is based on scientific sources, regulatory guidelines (IARC, EPA), and professional aromatherapy practice. Updated May 2026.
Disclaimer. The information contained in this article is for informational and educational purposes only and does not replace veterinary diagnoses or treatments. Essential oils are concentrated substances: improper use can cause adverse reactions. Consult your veterinarian before use, especially if the animal is a puppy, elderly, pregnant/lactating, undergoing treatment, or has pathologies (hepatic/renal/respiratory/neurological). In case of an adverse reaction: stop immediately, ventilate, gently wash if applied to fur, and contact your veterinarian if symptoms persist or are severe.